<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2024 Workiva-->
<!--r:e0d0fe58-8b4a-475d-aa65-467972a578f8,g:c7c5b2ce-ab69-424b-971e-f7b1c4ac8c98-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
  <link:roleRef roleURI="http://www.bakkt.com/role/Cover" xlink:type="simple" xlink:href="bakkt-20240630.xsd#Cover"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/Cover" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationLineItems_2d523ac8-c696-4f12-a742-32ecac363b6f" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationTable_fa7fc045-8ece-4bef-8dbb-cf0f5635b2dc" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentInformationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_dei_DocumentInformationLineItems_2d523ac8-c696-4f12-a742-32ecac363b6f" xlink:to="loc_dei_DocumentInformationTable_fa7fc045-8ece-4bef-8dbb-cf0f5635b2dc" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_724231a2-ac00-49c0-8463-bc4bfc96dfb1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_DocumentInformationTable_fa7fc045-8ece-4bef-8dbb-cf0f5635b2dc" xlink:to="loc_us-gaap_StatementClassOfStockAxis_724231a2-ac00-49c0-8463-bc4bfc96dfb1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_724231a2-ac00-49c0-8463-bc4bfc96dfb1_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_724231a2-ac00-49c0-8463-bc4bfc96dfb1" xlink:to="loc_us-gaap_ClassOfStockDomain_724231a2-ac00-49c0-8463-bc4bfc96dfb1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_f64faedd-5113-493d-8fee-b3b0f2385539" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_724231a2-ac00-49c0-8463-bc4bfc96dfb1" xlink:to="loc_us-gaap_ClassOfStockDomain_f64faedd-5113-493d-8fee-b3b0f2385539" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_de749cb9-216d-4e83-a97b-e2bb58ee4f1b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_f64faedd-5113-493d-8fee-b3b0f2385539" xlink:to="loc_us-gaap_CommonClassAMember_de749cb9-216d-4e83-a97b-e2bb58ee4f1b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_CommonClassVMember_d91a35da-c711-4623-9024-cd4be4b05f51" xlink:href="bakkt-20240630.xsd#bakkt_CommonClassVMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_f64faedd-5113-493d-8fee-b3b0f2385539" xlink:to="loc_bakkt_CommonClassVMember_d91a35da-c711-4623-9024-cd4be4b05f51" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantMember_943df95b-da11-48d7-8bc0-088577b95f4b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_WarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_f64faedd-5113-493d-8fee-b3b0f2385539" xlink:to="loc_us-gaap_WarrantMember_943df95b-da11-48d7-8bc0-088577b95f4b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_811d23f6-952a-44b1-bcf1-6937d1b8752f" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentType"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_2d523ac8-c696-4f12-a742-32ecac363b6f" xlink:to="loc_dei_DocumentType_811d23f6-952a-44b1-bcf1-6937d1b8752f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentQuarterlyReport_1a2b6508-b2da-4ef9-8503-8c777320b8c1" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentQuarterlyReport"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_2d523ac8-c696-4f12-a742-32ecac363b6f" xlink:to="loc_dei_DocumentQuarterlyReport_1a2b6508-b2da-4ef9-8503-8c777320b8c1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_93d16ad3-1546-4fef-a753-bdc68e7e0fd7" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentPeriodEndDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_2d523ac8-c696-4f12-a742-32ecac363b6f" xlink:to="loc_dei_DocumentPeriodEndDate_93d16ad3-1546-4fef-a753-bdc68e7e0fd7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentTransitionReport_dae3ad3e-ed86-46f2-a58e-24253f1336d1" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentTransitionReport"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_2d523ac8-c696-4f12-a742-32ecac363b6f" xlink:to="loc_dei_DocumentTransitionReport_dae3ad3e-ed86-46f2-a58e-24253f1336d1" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_f3d04eec-afcc-4c94-925b-567c6ff28053" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityFileNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_2d523ac8-c696-4f12-a742-32ecac363b6f" xlink:to="loc_dei_EntityFileNumber_f3d04eec-afcc-4c94-925b-567c6ff28053" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_4b918345-f8f5-4c63-a9a2-b0ea3ae0fe02" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityRegistrantName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_2d523ac8-c696-4f12-a742-32ecac363b6f" xlink:to="loc_dei_EntityRegistrantName_4b918345-f8f5-4c63-a9a2-b0ea3ae0fe02" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_487dffc3-fc15-4af7-870b-5132b3792b98" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_2d523ac8-c696-4f12-a742-32ecac363b6f" xlink:to="loc_dei_EntityIncorporationStateCountryCode_487dffc3-fc15-4af7-870b-5132b3792b98" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_17577cbd-868c-42c0-8fff-45eae7f68e14" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_2d523ac8-c696-4f12-a742-32ecac363b6f" xlink:to="loc_dei_EntityTaxIdentificationNumber_17577cbd-868c-42c0-8fff-45eae7f68e14" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_b2133685-0785-4ad9-aa5a-efc01178b317" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressAddressLine1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_2d523ac8-c696-4f12-a742-32ecac363b6f" xlink:to="loc_dei_EntityAddressAddressLine1_b2133685-0785-4ad9-aa5a-efc01178b317" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine2_cb06bca1-fa10-46d1-8156-9df576dad068" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressAddressLine2"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_2d523ac8-c696-4f12-a742-32ecac363b6f" xlink:to="loc_dei_EntityAddressAddressLine2_cb06bca1-fa10-46d1-8156-9df576dad068" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_5866f09e-682f-44c2-b305-75542f936158" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressCityOrTown"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_2d523ac8-c696-4f12-a742-32ecac363b6f" xlink:to="loc_dei_EntityAddressCityOrTown_5866f09e-682f-44c2-b305-75542f936158" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_254e9754-6d04-407f-8e5b-ab11d8ba208e" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressStateOrProvince"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_2d523ac8-c696-4f12-a742-32ecac363b6f" xlink:to="loc_dei_EntityAddressStateOrProvince_254e9754-6d04-407f-8e5b-ab11d8ba208e" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_dbfaae0a-6786-4218-82b1-9225235a8262" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressPostalZipCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_2d523ac8-c696-4f12-a742-32ecac363b6f" xlink:to="loc_dei_EntityAddressPostalZipCode_dbfaae0a-6786-4218-82b1-9225235a8262" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_5479d646-dfb6-4694-ab32-a00ac3c0543f" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_CityAreaCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_2d523ac8-c696-4f12-a742-32ecac363b6f" xlink:to="loc_dei_CityAreaCode_5479d646-dfb6-4694-ab32-a00ac3c0543f" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_09b3a50f-c1a4-4e76-9ab4-ab3487aef1c1" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_LocalPhoneNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_2d523ac8-c696-4f12-a742-32ecac363b6f" xlink:to="loc_dei_LocalPhoneNumber_09b3a50f-c1a4-4e76-9ab4-ab3487aef1c1" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_6e8709d0-3a50-48bd-9aae-283e18bb266a" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_Security12bTitle"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_2d523ac8-c696-4f12-a742-32ecac363b6f" xlink:to="loc_dei_Security12bTitle_6e8709d0-3a50-48bd-9aae-283e18bb266a" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_0513a4c9-3b45-4996-9d7e-9d271b134faa" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_TradingSymbol"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_2d523ac8-c696-4f12-a742-32ecac363b6f" xlink:to="loc_dei_TradingSymbol_0513a4c9-3b45-4996-9d7e-9d271b134faa" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_95a65ecd-a648-4504-b676-eb9806a08cd2" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_SecurityExchangeName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_2d523ac8-c696-4f12-a742-32ecac363b6f" xlink:to="loc_dei_SecurityExchangeName_95a65ecd-a648-4504-b676-eb9806a08cd2" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCurrentReportingStatus_70a00c25-0f64-4347-989a-6a0dd3b49a75" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityCurrentReportingStatus"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_2d523ac8-c696-4f12-a742-32ecac363b6f" xlink:to="loc_dei_EntityCurrentReportingStatus_70a00c25-0f64-4347-989a-6a0dd3b49a75" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityInteractiveDataCurrent_8acd8cf4-d14d-4f5d-9142-c222a3c770d0" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityInteractiveDataCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_2d523ac8-c696-4f12-a742-32ecac363b6f" xlink:to="loc_dei_EntityInteractiveDataCurrent_8acd8cf4-d14d-4f5d-9142-c222a3c770d0" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFilerCategory_64946256-c125-448c-8c8e-bacd2cdffd29" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityFilerCategory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_2d523ac8-c696-4f12-a742-32ecac363b6f" xlink:to="loc_dei_EntityFilerCategory_64946256-c125-448c-8c8e-bacd2cdffd29" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntitySmallBusiness_2d0355ac-5d7d-47c2-9ba9-9638ed847680" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntitySmallBusiness"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_2d523ac8-c696-4f12-a742-32ecac363b6f" xlink:to="loc_dei_EntitySmallBusiness_2d0355ac-5d7d-47c2-9ba9-9638ed847680" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_6c8d196c-e295-4273-b6ea-889200e2f4d7" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_2d523ac8-c696-4f12-a742-32ecac363b6f" xlink:to="loc_dei_EntityEmergingGrowthCompany_6c8d196c-e295-4273-b6ea-889200e2f4d7" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityExTransitionPeriod_a828f203-cb18-4a03-a37a-fe5a3d5faa69" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityExTransitionPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_2d523ac8-c696-4f12-a742-32ecac363b6f" xlink:to="loc_dei_EntityExTransitionPeriod_a828f203-cb18-4a03-a37a-fe5a3d5faa69" xlink:type="arc" order="23"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityShellCompany_00e178c0-08d6-4cb5-aba9-d922dcec09d8" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityShellCompany"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_2d523ac8-c696-4f12-a742-32ecac363b6f" xlink:to="loc_dei_EntityShellCompany_00e178c0-08d6-4cb5-aba9-d922dcec09d8" xlink:type="arc" order="24"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCommonStockSharesOutstanding_95e06361-64a0-49fc-b26a-73836375d58f" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityCommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_2d523ac8-c696-4f12-a742-32ecac363b6f" xlink:to="loc_dei_EntityCommonStockSharesOutstanding_95e06361-64a0-49fc-b26a-73836375d58f" xlink:type="arc" order="25"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_ed527f61-de52-429d-8478-ced5ed397eb9" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_AmendmentFlag"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_2d523ac8-c696-4f12-a742-32ecac363b6f" xlink:to="loc_dei_AmendmentFlag_ed527f61-de52-429d-8478-ced5ed397eb9" xlink:type="arc" order="26"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalPeriodFocus_b310d4f2-6a34-45a9-bc2d-92e169145642" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentFiscalPeriodFocus"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_2d523ac8-c696-4f12-a742-32ecac363b6f" xlink:to="loc_dei_DocumentFiscalPeriodFocus_b310d4f2-6a34-45a9-bc2d-92e169145642" xlink:type="arc" order="27"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalYearFocus_c798dc82-fef9-42dd-876e-df77cd726f80" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentFiscalYearFocus"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_2d523ac8-c696-4f12-a742-32ecac363b6f" xlink:to="loc_dei_DocumentFiscalYearFocus_c798dc82-fef9-42dd-876e-df77cd726f80" xlink:type="arc" order="28"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CurrentFiscalYearEndDate_619d826d-313f-43aa-a4bf-affbeda110ac" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_CurrentFiscalYearEndDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_2d523ac8-c696-4f12-a742-32ecac363b6f" xlink:to="loc_dei_CurrentFiscalYearEndDate_619d826d-313f-43aa-a4bf-affbeda110ac" xlink:type="arc" order="29"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_5f80ec54-8b38-427a-adff-9c14777d349d" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityCentralIndexKey"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_2d523ac8-c696-4f12-a742-32ecac363b6f" xlink:to="loc_dei_EntityCentralIndexKey_5f80ec54-8b38-427a-adff-9c14777d349d" xlink:type="arc" order="30"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.bakkt.com/role/ConsolidatedBalanceSheets" xlink:type="simple" xlink:href="bakkt-20240630.xsd#ConsolidatedBalanceSheets"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/ConsolidatedBalanceSheets" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_678920e0-0bec-45e7-9292-b1b1b980e21e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_b1198729-5f23-4658-91f3-1ed9196bb365" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_678920e0-0bec-45e7-9292-b1b1b980e21e" xlink:to="loc_us-gaap_StatementTable_b1198729-5f23-4658-91f3-1ed9196bb365" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_7721e10c-bf6e-4734-a627-329040a90357" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_b1198729-5f23-4658-91f3-1ed9196bb365" xlink:to="loc_us-gaap_StatementClassOfStockAxis_7721e10c-bf6e-4734-a627-329040a90357" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_7721e10c-bf6e-4734-a627-329040a90357_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_7721e10c-bf6e-4734-a627-329040a90357" xlink:to="loc_us-gaap_ClassOfStockDomain_7721e10c-bf6e-4734-a627-329040a90357_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_57105fb0-0d05-49df-8cbc-9de23aa03d28" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_7721e10c-bf6e-4734-a627-329040a90357" xlink:to="loc_us-gaap_ClassOfStockDomain_57105fb0-0d05-49df-8cbc-9de23aa03d28" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_4f08e624-ad84-4e1a-b743-8e35d1bd1f2e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_57105fb0-0d05-49df-8cbc-9de23aa03d28" xlink:to="loc_us-gaap_CommonClassAMember_4f08e624-ad84-4e1a-b743-8e35d1bd1f2e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_CommonClassVMember_7db138ea-6443-40b0-b206-fb65ebf21978" xlink:href="bakkt-20240630.xsd#bakkt_CommonClassVMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_57105fb0-0d05-49df-8cbc-9de23aa03d28" xlink:to="loc_bakkt_CommonClassVMember_7db138ea-6443-40b0-b206-fb65ebf21978" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_74a6bc99-747b-40aa-bdc1-d344910aa64b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_b1198729-5f23-4658-91f3-1ed9196bb365" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_74a6bc99-747b-40aa-bdc1-d344910aa64b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_74a6bc99-747b-40aa-bdc1-d344910aa64b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_74a6bc99-747b-40aa-bdc1-d344910aa64b" xlink:to="loc_us-gaap_RelatedPartyDomain_74a6bc99-747b-40aa-bdc1-d344910aa64b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_94c647de-18b2-4f9c-a812-06364ae38ee5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_74a6bc99-747b-40aa-bdc1-d344910aa64b" xlink:to="loc_us-gaap_RelatedPartyDomain_94c647de-18b2-4f9c-a812-06364ae38ee5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyMember_b9d893e3-3e23-45bd-8b2e-15e9c440ae6f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_94c647de-18b2-4f9c-a812-06364ae38ee5" xlink:to="loc_us-gaap_RelatedPartyMember_b9d893e3-3e23-45bd-8b2e-15e9c440ae6f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonrelatedPartyMember_33015cff-5a52-4244-816f-08526485be01" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NonrelatedPartyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_94c647de-18b2-4f9c-a812-06364ae38ee5" xlink:to="loc_us-gaap_NonrelatedPartyMember_33015cff-5a52-4244-816f-08526485be01" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract_2cd0e3f1-d7cd-4c63-9946-45f500253c26" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_678920e0-0bec-45e7-9292-b1b1b980e21e" xlink:to="loc_us-gaap_AssetsAbstract_2cd0e3f1-d7cd-4c63-9946-45f500253c26" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrentAbstract_4199efa6-e7e9-4611-857a-4ce87c63caf7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsCurrentAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_2cd0e3f1-d7cd-4c63-9946-45f500253c26" xlink:to="loc_us-gaap_AssetsCurrentAbstract_4199efa6-e7e9-4611-857a-4ce87c63caf7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_bb9e680a-db38-494a-903b-4dcb3032aa0c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_4199efa6-e7e9-4611-857a-4ce87c63caf7" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_bb9e680a-db38-494a-903b-4dcb3032aa0c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashCurrent_b7b23aa8-d73e-4c17-85e6-bb3fa3932f8e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestrictedCashCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_4199efa6-e7e9-4611-857a-4ce87c63caf7" xlink:to="loc_us-gaap_RestrictedCashCurrent_b7b23aa8-d73e-4c17-85e6-bb3fa3932f8e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FundsHeldForClients_2e4a7bd8-7fbd-40bb-8e01-a08d6c770c68" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FundsHeldForClients"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_4199efa6-e7e9-4611-857a-4ce87c63caf7" xlink:to="loc_us-gaap_FundsHeldForClients_2e4a7bd8-7fbd-40bb-8e01-a08d6c770c68" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterestCurrent_c9173e8a-2f8f-4f19-af69-fac5a22dad8f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterestCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_4199efa6-e7e9-4611-857a-4ce87c63caf7" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterestCurrent_c9173e8a-2f8f-4f19-af69-fac5a22dad8f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_98a6d4aa-5a1c-43f9-a80e-198aa2947670" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_4199efa6-e7e9-4611-857a-4ce87c63caf7" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_98a6d4aa-5a1c-43f9-a80e-198aa2947670" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidInsurance_cdfb53ae-60c9-49e4-9ad2-74da82cc2c05" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PrepaidInsurance"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_4199efa6-e7e9-4611-857a-4ce87c63caf7" xlink:to="loc_us-gaap_PrepaidInsurance_cdfb53ae-60c9-49e4-9ad2-74da82cc2c05" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SafeguardingAssetPlatformOperatorCryptoAsset_12037a8e-035c-4931-9f7b-97f267eac8ae" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_SafeguardingAssetPlatformOperatorCryptoAsset"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_4199efa6-e7e9-4611-857a-4ce87c63caf7" xlink:to="loc_srt_SafeguardingAssetPlatformOperatorCryptoAsset_12037a8e-035c-4931-9f7b-97f267eac8ae" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_03dadb65-1da3-488f-9510-2c9e267fa916" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_4199efa6-e7e9-4611-857a-4ce87c63caf7" xlink:to="loc_us-gaap_OtherAssetsCurrent_03dadb65-1da3-488f-9510-2c9e267fa916" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_4914479d-b480-4b2c-8ab8-ee3fb78b7c97" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_4199efa6-e7e9-4611-857a-4ce87c63caf7" xlink:to="loc_us-gaap_AssetsCurrent_4914479d-b480-4b2c-8ab8-ee3fb78b7c97" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_4522d2e5-c35b-466e-8a89-9a32ab24e1bf" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_2cd0e3f1-d7cd-4c63-9946-45f500253c26" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_4522d2e5-c35b-466e-8a89-9a32ab24e1bf" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_80a50904-c5a9-42d6-9c8b-dc0c16b2f942" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Goodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_2cd0e3f1-d7cd-4c63-9946-45f500253c26" xlink:to="loc_us-gaap_Goodwill_80a50904-c5a9-42d6-9c8b-dc0c16b2f942" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_e79775c9-c108-4204-8c7d-fd9ca4f16b05" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_2cd0e3f1-d7cd-4c63-9946-45f500253c26" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_e79775c9-c108-4204-8c7d-fd9ca4f16b05" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_f732f006-58ba-49ec-b25b-9eb0eb5132bf" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_2cd0e3f1-d7cd-4c63-9946-45f500253c26" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_f732f006-58ba-49ec-b25b-9eb0eb5132bf" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_6c8420f3-1c2c-451c-83ed-95b54758fac8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Assets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_2cd0e3f1-d7cd-4c63-9946-45f500253c26" xlink:to="loc_us-gaap_Assets_6c8420f3-1c2c-451c-83ed-95b54758fac8" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_755c98dc-5615-4483-b6b8-e18a9a3e9867" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_678920e0-0bec-45e7-9292-b1b1b980e21e" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_755c98dc-5615-4483-b6b8-e18a9a3e9867" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrentAbstract_a553238a-9036-4ade-a14b-f811738f354d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesCurrentAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_755c98dc-5615-4483-b6b8-e18a9a3e9867" xlink:to="loc_us-gaap_LiabilitiesCurrentAbstract_a553238a-9036-4ade-a14b-f811738f354d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_fc424f6b-f883-4c0e-b39c-613fde17fd25" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_a553238a-9036-4ade-a14b-f811738f354d" xlink:to="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_fc424f6b-f883-4c0e-b39c-613fde17fd25" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_CustomerFundsPayableCurrent_fee43b8a-ce5f-4a07-92fa-675825e7aa77" xlink:href="bakkt-20240630.xsd#bakkt_CustomerFundsPayableCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_a553238a-9036-4ade-a14b-f811738f354d" xlink:to="loc_bakkt_CustomerFundsPayableCurrent_fee43b8a-ce5f-4a07-92fa-675825e7aa77" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_d2d34165-b9c1-4a45-90bf-06678c471519" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_a553238a-9036-4ade-a14b-f811738f354d" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_d2d34165-b9c1-4a45-90bf-06678c471519" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_3a7305e1-bcb0-4572-9c3f-e90297c29d72" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherLiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_a553238a-9036-4ade-a14b-f811738f354d" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent_3a7305e1-bcb0-4572-9c3f-e90297c29d72" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SafeguardingLiabilityPlatformOperatorCryptoAsset_53b3a302-fe24-43e3-93ca-3286a4cefad9" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_SafeguardingLiabilityPlatformOperatorCryptoAsset"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_a553238a-9036-4ade-a14b-f811738f354d" xlink:to="loc_srt_SafeguardingLiabilityPlatformOperatorCryptoAsset_53b3a302-fe24-43e3-93ca-3286a4cefad9" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_27c8a044-fcbf-4688-b2b8-64ddba86c49a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_a553238a-9036-4ade-a14b-f811738f354d" xlink:to="loc_us-gaap_LiabilitiesCurrent_27c8a044-fcbf-4688-b2b8-64ddba86c49a" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityNoncurrent_df81e5c0-9f04-4e36-9f6a-f29fa7dfa677" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ContractWithCustomerLiabilityNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_755c98dc-5615-4483-b6b8-e18a9a3e9867" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityNoncurrent_df81e5c0-9f04-4e36-9f6a-f29fa7dfa677" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_WarrantLiability_5c3d6922-3a67-4d90-a770-073ab28c7d25" xlink:href="bakkt-20240630.xsd#bakkt_WarrantLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_755c98dc-5615-4483-b6b8-e18a9a3e9867" xlink:to="loc_bakkt_WarrantLiability_5c3d6922-3a67-4d90-a770-073ab28c7d25" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_9b4ebef6-5daf-4a73-b514-634d1fd40348" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_755c98dc-5615-4483-b6b8-e18a9a3e9867" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_9b4ebef6-5daf-4a73-b514-634d1fd40348" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_9d221225-2b92-46e0-bd1b-16f0228edcfa" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Liabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_755c98dc-5615-4483-b6b8-e18a9a3e9867" xlink:to="loc_us-gaap_Liabilities_9d221225-2b92-46e0-bd1b-16f0228edcfa" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_aaf79567-cacf-4744-a1e1-e1a93ea7c14f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommitmentsAndContingencies"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_755c98dc-5615-4483-b6b8-e18a9a3e9867" xlink:to="loc_us-gaap_CommitmentsAndContingencies_aaf79567-cacf-4744-a1e1-e1a93ea7c14f" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValueOutstanding_793c1bfc-1325-4c0b-831a-04d9939a88ac" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockValueOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_755c98dc-5615-4483-b6b8-e18a9a3e9867" xlink:to="loc_us-gaap_CommonStockValueOutstanding_793c1bfc-1325-4c0b-831a-04d9939a88ac" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapital_33b5af31-b9ac-44d6-8eca-c7b0c9279df6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AdditionalPaidInCapital"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_755c98dc-5615-4483-b6b8-e18a9a3e9867" xlink:to="loc_us-gaap_AdditionalPaidInCapital_33b5af31-b9ac-44d6-8eca-c7b0c9279df6" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_cfb6fee9-04b8-4ab0-a858-290644356346" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_755c98dc-5615-4483-b6b8-e18a9a3e9867" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_cfb6fee9-04b8-4ab0-a858-290644356346" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_82946828-0158-4cbd-af0e-86815e56a58c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_755c98dc-5615-4483-b6b8-e18a9a3e9867" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_82946828-0158-4cbd-af0e-86815e56a58c" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_7c068066-500c-4837-9eed-5d2c1283e118" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockholdersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_755c98dc-5615-4483-b6b8-e18a9a3e9867" xlink:to="loc_us-gaap_StockholdersEquity_7c068066-500c-4837-9eed-5d2c1283e118" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterest_f7e77333-c265-419d-b4d7-c4121d988127" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MinorityInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_755c98dc-5615-4483-b6b8-e18a9a3e9867" xlink:to="loc_us-gaap_MinorityInterest_f7e77333-c265-419d-b4d7-c4121d988127" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_85310ec8-cbd2-414f-9ffc-8612331de872" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_755c98dc-5615-4483-b6b8-e18a9a3e9867" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_85310ec8-cbd2-414f-9ffc-8612331de872" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_82bf1b38-e59b-4f3a-a4e7-c706f186387f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_755c98dc-5615-4483-b6b8-e18a9a3e9867" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquity_82bf1b38-e59b-4f3a-a4e7-c706f186387f" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_PlatformOperatorCryptoAssetUnsettledTradesLiability_5df5d129-ac0b-4612-a7c2-dee64bfd398c" xlink:href="bakkt-20240630.xsd#bakkt_PlatformOperatorCryptoAssetUnsettledTradesLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_678920e0-0bec-45e7-9292-b1b1b980e21e" xlink:to="loc_bakkt_PlatformOperatorCryptoAssetUnsettledTradesLiability_5df5d129-ac0b-4612-a7c2-dee64bfd398c" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.bakkt.com/role/ConsolidatedBalanceSheetsParentheticals" xlink:type="simple" xlink:href="bakkt-20240630.xsd#ConsolidatedBalanceSheetsParentheticals"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/ConsolidatedBalanceSheetsParentheticals" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_2d13afc8-b247-4c2e-b55f-6decfb571e0b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_637641db-a9a2-4823-8757-f8f65235e852" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_2d13afc8-b247-4c2e-b55f-6decfb571e0b" xlink:to="loc_us-gaap_StatementTable_637641db-a9a2-4823-8757-f8f65235e852" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_547086fa-1103-4af6-8c7b-f12add51afa4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_637641db-a9a2-4823-8757-f8f65235e852" xlink:to="loc_us-gaap_StatementClassOfStockAxis_547086fa-1103-4af6-8c7b-f12add51afa4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_547086fa-1103-4af6-8c7b-f12add51afa4_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_547086fa-1103-4af6-8c7b-f12add51afa4" xlink:to="loc_us-gaap_ClassOfStockDomain_547086fa-1103-4af6-8c7b-f12add51afa4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_b5cb653c-edbf-4983-8e25-949bb9f3f085" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_547086fa-1103-4af6-8c7b-f12add51afa4" xlink:to="loc_us-gaap_ClassOfStockDomain_b5cb653c-edbf-4983-8e25-949bb9f3f085" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_08548002-77e2-4a49-bbc1-f885c9d68bf9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_b5cb653c-edbf-4983-8e25-949bb9f3f085" xlink:to="loc_us-gaap_CommonClassAMember_08548002-77e2-4a49-bbc1-f885c9d68bf9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_CommonClassVMember_993c9020-8ae1-44aa-845e-1897ce7f3df7" xlink:href="bakkt-20240630.xsd#bakkt_CommonClassVMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_b5cb653c-edbf-4983-8e25-949bb9f3f085" xlink:to="loc_bakkt_CommonClassVMember_993c9020-8ae1-44aa-845e-1897ce7f3df7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_1436d243-274a-4ee1-af1b-fca5317bd5ad" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_2d13afc8-b247-4c2e-b55f-6decfb571e0b" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_1436d243-274a-4ee1-af1b-fca5317bd5ad" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_7a13cadc-3cea-416b-a154-26745ab1ca9b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_2d13afc8-b247-4c2e-b55f-6decfb571e0b" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_7a13cadc-3cea-416b-a154-26745ab1ca9b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesIssued_2ad7c4d0-32dc-40ea-a9c3-82cbecf33423" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockSharesIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_2d13afc8-b247-4c2e-b55f-6decfb571e0b" xlink:to="loc_us-gaap_CommonStockSharesIssued_2ad7c4d0-32dc-40ea-a9c3-82cbecf33423" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_aed58d36-b164-42ff-862e-adeb559739bc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_2d13afc8-b247-4c2e-b55f-6decfb571e0b" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_aed58d36-b164-42ff-862e-adeb559739bc" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.bakkt.com/role/ConsolidatedStatementsofOperations" xlink:type="simple" xlink:href="bakkt-20240630.xsd#ConsolidatedStatementsofOperations"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/ConsolidatedStatementsofOperations" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_36dffc56-7104-4f3e-8550-e466dd4e4689" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_feaaa52d-985c-4cb8-a490-0c9884d331aa" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_36dffc56-7104-4f3e-8550-e466dd4e4689" xlink:to="loc_us-gaap_StatementTable_feaaa52d-985c-4cb8-a490-0c9884d331aa" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerSalesChannelAxis_1157d712-6081-47a6-ad9d-480ab8146166" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ContractWithCustomerSalesChannelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_feaaa52d-985c-4cb8-a490-0c9884d331aa" xlink:to="loc_us-gaap_ContractWithCustomerSalesChannelAxis_1157d712-6081-47a6-ad9d-480ab8146166" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerSalesChannelDomain_1157d712-6081-47a6-ad9d-480ab8146166_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ContractWithCustomerSalesChannelDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ContractWithCustomerSalesChannelAxis_1157d712-6081-47a6-ad9d-480ab8146166" xlink:to="loc_us-gaap_ContractWithCustomerSalesChannelDomain_1157d712-6081-47a6-ad9d-480ab8146166_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerSalesChannelDomain_bc0fbcc1-9292-45ee-aea2-b56476b1c04b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ContractWithCustomerSalesChannelDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ContractWithCustomerSalesChannelAxis_1157d712-6081-47a6-ad9d-480ab8146166" xlink:to="loc_us-gaap_ContractWithCustomerSalesChannelDomain_bc0fbcc1-9292-45ee-aea2-b56476b1c04b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_SalesChannelAlternativePaymentPlatformMember_bbdc5b3e-8c10-4afa-b28d-1766dde1c6e4" xlink:href="bakkt-20240630.xsd#bakkt_SalesChannelAlternativePaymentPlatformMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ContractWithCustomerSalesChannelDomain_bc0fbcc1-9292-45ee-aea2-b56476b1c04b" xlink:to="loc_bakkt_SalesChannelAlternativePaymentPlatformMember_bbdc5b3e-8c10-4afa-b28d-1766dde1c6e4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_SalesChannelLoyaltyRedemptionPlatformMember_3bb29f56-1657-4d39-a0d4-fe330d1702ba" xlink:href="bakkt-20240630.xsd#bakkt_SalesChannelLoyaltyRedemptionPlatformMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ContractWithCustomerSalesChannelDomain_bc0fbcc1-9292-45ee-aea2-b56476b1c04b" xlink:to="loc_bakkt_SalesChannelLoyaltyRedemptionPlatformMember_3bb29f56-1657-4d39-a0d4-fe330d1702ba" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenuesAbstract_18a05ddd-44bb-480d-8c9d-2df0ab6a2094" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RevenuesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_36dffc56-7104-4f3e-8550-e466dd4e4689" xlink:to="loc_us-gaap_RevenuesAbstract_18a05ddd-44bb-480d-8c9d-2df0ab6a2094" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_60ef09b1-7c6a-4c31-9411-a91657716f12" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract_18a05ddd-44bb-480d-8c9d-2df0ab6a2094" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_60ef09b1-7c6a-4c31-9411-a91657716f12" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpensesAbstract_3a384cdd-afb6-4b55-9184-ffb7fa674d92" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingExpensesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_36dffc56-7104-4f3e-8550-e466dd4e4689" xlink:to="loc_us-gaap_OperatingExpensesAbstract_3a384cdd-afb6-4b55-9184-ffb7fa674d92" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_CryptoCosts_ed680e59-ecea-4139-9ea2-770cbadc9bbb" xlink:href="bakkt-20240630.xsd#bakkt_CryptoCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_3a384cdd-afb6-4b55-9184-ffb7fa674d92" xlink:to="loc_bakkt_CryptoCosts_ed680e59-ecea-4139-9ea2-770cbadc9bbb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_ExecutionClearingAndBrokerageFees_e4b83111-8b7c-4c5b-979b-fa877e076881" xlink:href="bakkt-20240630.xsd#bakkt_ExecutionClearingAndBrokerageFees"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_3a384cdd-afb6-4b55-9184-ffb7fa674d92" xlink:to="loc_bakkt_ExecutionClearingAndBrokerageFees_e4b83111-8b7c-4c5b-979b-fa877e076881" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LaborAndRelatedExpense_86d4bf7b-7962-48fb-817f-8be2cf8c9ade" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LaborAndRelatedExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_3a384cdd-afb6-4b55-9184-ffb7fa674d92" xlink:to="loc_us-gaap_LaborAndRelatedExpense_86d4bf7b-7962-48fb-817f-8be2cf8c9ade" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfessionalFees_136e40cb-97ea-42c3-b5f8-8d2c140ce9d8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProfessionalFees"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_3a384cdd-afb6-4b55-9184-ffb7fa674d92" xlink:to="loc_us-gaap_ProfessionalFees_136e40cb-97ea-42c3-b5f8-8d2c140ce9d8" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommunicationsAndInformationTechnology_0904ecd0-164e-48cc-b790-ed02c9f120a9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommunicationsAndInformationTechnology"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_3a384cdd-afb6-4b55-9184-ffb7fa674d92" xlink:to="loc_us-gaap_CommunicationsAndInformationTechnology_0904ecd0-164e-48cc-b790-ed02c9f120a9" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherSellingGeneralAndAdministrativeExpense_e027b55f-ab98-464a-b776-4b4a0bfd8477" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherSellingGeneralAndAdministrativeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_3a384cdd-afb6-4b55-9184-ffb7fa674d92" xlink:to="loc_us-gaap_OtherSellingGeneralAndAdministrativeExpense_e027b55f-ab98-464a-b776-4b4a0bfd8477" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationAcquisitionRelatedCosts_6d3a4faf-346e-424e-aae6-78fdcf9ee93f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationAcquisitionRelatedCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_3a384cdd-afb6-4b55-9184-ffb7fa674d92" xlink:to="loc_us-gaap_BusinessCombinationAcquisitionRelatedCosts_6d3a4faf-346e-424e-aae6-78fdcf9ee93f" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationAndAmortization_4f201a2c-9abc-4122-ae5a-6bb58d78153c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_3a384cdd-afb6-4b55-9184-ffb7fa674d92" xlink:to="loc_us-gaap_DepreciationAndAmortization_4f201a2c-9abc-4122-ae5a-6bb58d78153c" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostsAndExpensesRelatedParty_24718cd9-bda0-4307-8299-acbc4a60bcba" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CostsAndExpensesRelatedParty"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_3a384cdd-afb6-4b55-9184-ffb7fa674d92" xlink:to="loc_us-gaap_CostsAndExpensesRelatedParty_24718cd9-bda0-4307-8299-acbc4a60bcba" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_cc9ca1c1-8251-4941-bb48-17c029d1119f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ImpairmentOfLongLivedAssetsHeldForUse"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_3a384cdd-afb6-4b55-9184-ffb7fa674d92" xlink:to="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_cc9ca1c1-8251-4941-bb48-17c029d1119f" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_4218a6e8-bfb2-41ca-8e61-f5079e53c6fd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestructuringCharges"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_3a384cdd-afb6-4b55-9184-ffb7fa674d92" xlink:to="loc_us-gaap_RestructuringCharges_4218a6e8-bfb2-41ca-8e61-f5079e53c6fd" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCostAndExpenseOperating_9be7d4f2-5867-491e-877c-45ce56243339" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherCostAndExpenseOperating"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_3a384cdd-afb6-4b55-9184-ffb7fa674d92" xlink:to="loc_us-gaap_OtherCostAndExpenseOperating_9be7d4f2-5867-491e-877c-45ce56243339" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_2f58a84d-d574-4f13-910b-11d6a815f0dc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingExpenses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_3a384cdd-afb6-4b55-9184-ffb7fa674d92" xlink:to="loc_us-gaap_OperatingExpenses_2f58a84d-d574-4f13-910b-11d6a815f0dc" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_5544dbe7-2f6a-4346-8916-405889e00bc8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_36dffc56-7104-4f3e-8550-e466dd4e4689" xlink:to="loc_us-gaap_OperatingIncomeLoss_5544dbe7-2f6a-4346-8916-405889e00bc8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNet_34593b25-3e22-4c4f-9bd7-6305c472ce85" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InterestIncomeExpenseNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_36dffc56-7104-4f3e-8550-e466dd4e4689" xlink:to="loc_us-gaap_InterestIncomeExpenseNet_34593b25-3e22-4c4f-9bd7-6305c472ce85" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAdjustmentOfWarrants_efe6c383-dda7-4f94-b96b-7e6826c93692" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAdjustmentOfWarrants"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_36dffc56-7104-4f3e-8550-e466dd4e4689" xlink:to="loc_us-gaap_FairValueAdjustmentOfWarrants_efe6c383-dda7-4f94-b96b-7e6826c93692" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_d1c2e284-7db7-4365-bb04-e4c88f1f87fe" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_36dffc56-7104-4f3e-8550-e466dd4e4689" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_d1c2e284-7db7-4365-bb04-e4c88f1f87fe" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_58621c6d-3a43-4c43-98f9-92e9cc9c1451" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_36dffc56-7104-4f3e-8550-e466dd4e4689" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_58621c6d-3a43-4c43-98f9-92e9cc9c1451" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_274f43c3-bd48-4d39-98af-9c3ce37125aa" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_36dffc56-7104-4f3e-8550-e466dd4e4689" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_274f43c3-bd48-4d39-98af-9c3ce37125aa" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_3cba6fb9-26c9-4aeb-90da-8428607192fb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProfitLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_36dffc56-7104-4f3e-8550-e466dd4e4689" xlink:to="loc_us-gaap_ProfitLoss_3cba6fb9-26c9-4aeb-90da-8428607192fb" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_ff5576dd-8c72-4235-90bc-ee867970336e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_36dffc56-7104-4f3e-8550-e466dd4e4689" xlink:to="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_ff5576dd-8c72-4235-90bc-ee867970336e" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_5a468f07-a500-4eb2-9e19-6b2e71a5d925" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_36dffc56-7104-4f3e-8550-e466dd4e4689" xlink:to="loc_us-gaap_NetIncomeLoss_5a468f07-a500-4eb2-9e19-6b2e71a5d925" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareAbstract_4cb01d35-d4f0-4602-a128-46aedbf12393" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EarningsPerShareAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_36dffc56-7104-4f3e-8550-e466dd4e4689" xlink:to="loc_us-gaap_EarningsPerShareAbstract_4cb01d35-d4f0-4602-a128-46aedbf12393" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasic_4ce752c5-5ed4-4471-98ab-c9beb4ceb646" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EarningsPerShareBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareAbstract_4cb01d35-d4f0-4602-a128-46aedbf12393" xlink:to="loc_us-gaap_EarningsPerShareBasic_4ce752c5-5ed4-4471-98ab-c9beb4ceb646" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted_e9404114-b5e5-4635-b6a2-83e9116448fd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EarningsPerShareDiluted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareAbstract_4cb01d35-d4f0-4602-a128-46aedbf12393" xlink:to="loc_us-gaap_EarningsPerShareDiluted_e9404114-b5e5-4635-b6a2-83e9116448fd" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.bakkt.com/role/ConsolidatedStatementsofOperationsParentheticals" xlink:type="simple" xlink:href="bakkt-20240630.xsd#ConsolidatedStatementsofOperationsParentheticals"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/ConsolidatedStatementsofOperationsParentheticals" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_502234ea-678c-4def-9e7a-da7f2d3edffe" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_4cd9418a-91ba-406e-9d82-423ca3279713" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_502234ea-678c-4def-9e7a-da7f2d3edffe" xlink:to="loc_us-gaap_StatementTable_4cd9418a-91ba-406e-9d82-423ca3279713" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_3af01834-9f3b-41ed-8509-a19b0850495c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_4cd9418a-91ba-406e-9d82-423ca3279713" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_3af01834-9f3b-41ed-8509-a19b0850495c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_3af01834-9f3b-41ed-8509-a19b0850495c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_3af01834-9f3b-41ed-8509-a19b0850495c" xlink:to="loc_us-gaap_RelatedPartyDomain_3af01834-9f3b-41ed-8509-a19b0850495c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_37da6e91-e1de-436c-bf77-bbcbb2e66bb6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_3af01834-9f3b-41ed-8509-a19b0850495c" xlink:to="loc_us-gaap_RelatedPartyDomain_37da6e91-e1de-436c-bf77-bbcbb2e66bb6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyMember_575f1ef9-802f-47fe-bff1-6e0bacdc5ad4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_37da6e91-e1de-436c-bf77-bbcbb2e66bb6" xlink:to="loc_us-gaap_RelatedPartyMember_575f1ef9-802f-47fe-bff1-6e0bacdc5ad4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_ec3d8f00-9423-4d00-97ad-911564a20add" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_502234ea-678c-4def-9e7a-da7f2d3edffe" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_ec3d8f00-9423-4d00-97ad-911564a20add" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.bakkt.com/role/ConsolidatedStatementsofChangesinStockholdersEquity" xlink:type="simple" xlink:href="bakkt-20240630.xsd#ConsolidatedStatementsofChangesinStockholdersEquity"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/ConsolidatedStatementsofChangesinStockholdersEquity" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_82f2f170-1c94-4860-bd82-1d0889343a9f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_ec482738-c12f-4947-b3f0-9a407f5a732c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_82f2f170-1c94-4860-bd82-1d0889343a9f" xlink:to="loc_us-gaap_StatementTable_ec482738-c12f-4947-b3f0-9a407f5a732c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_bc95982e-8764-4147-8058-63d7228c12d4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_ec482738-c12f-4947-b3f0-9a407f5a732c" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_bc95982e-8764-4147-8058-63d7228c12d4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_bc95982e-8764-4147-8058-63d7228c12d4_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_bc95982e-8764-4147-8058-63d7228c12d4" xlink:to="loc_us-gaap_EquityComponentDomain_bc95982e-8764-4147-8058-63d7228c12d4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_7d244050-f4af-4306-a880-0396a74bff64" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_bc95982e-8764-4147-8058-63d7228c12d4" xlink:to="loc_us-gaap_EquityComponentDomain_7d244050-f4af-4306-a880-0396a74bff64" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ParentMember_81a3a922-41e0-46c7-bbb7-06a670c0905f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ParentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_7d244050-f4af-4306-a880-0396a74bff64" xlink:to="loc_us-gaap_ParentMember_81a3a922-41e0-46c7-bbb7-06a670c0905f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_3cf61d70-5250-4eb5-bd01-90d0ea8229a4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ParentMember_81a3a922-41e0-46c7-bbb7-06a670c0905f" xlink:to="loc_us-gaap_CommonStockMember_3cf61d70-5250-4eb5-bd01-90d0ea8229a4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_fe480428-787d-496a-b527-2b5e8c4b6ba9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ParentMember_81a3a922-41e0-46c7-bbb7-06a670c0905f" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_fe480428-787d-496a-b527-2b5e8c4b6ba9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_5f67e0a8-70a0-4118-8d8b-07de8e20026c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RetainedEarningsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ParentMember_81a3a922-41e0-46c7-bbb7-06a670c0905f" xlink:to="loc_us-gaap_RetainedEarningsMember_5f67e0a8-70a0-4118-8d8b-07de8e20026c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_eb998ae5-d596-4f2d-ab43-ca4787c0b06c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ParentMember_81a3a922-41e0-46c7-bbb7-06a670c0905f" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_eb998ae5-d596-4f2d-ab43-ca4787c0b06c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoncontrollingInterestMember_5614e137-f151-4b03-b3bb-db93d664f808" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NoncontrollingInterestMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_7d244050-f4af-4306-a880-0396a74bff64" xlink:to="loc_us-gaap_NoncontrollingInterestMember_5614e137-f151-4b03-b3bb-db93d664f808" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_62b1c4ae-3734-4a21-8dca-1c52d92972cd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_ec482738-c12f-4947-b3f0-9a407f5a732c" xlink:to="loc_us-gaap_StatementClassOfStockAxis_62b1c4ae-3734-4a21-8dca-1c52d92972cd" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_62b1c4ae-3734-4a21-8dca-1c52d92972cd_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_62b1c4ae-3734-4a21-8dca-1c52d92972cd" xlink:to="loc_us-gaap_ClassOfStockDomain_62b1c4ae-3734-4a21-8dca-1c52d92972cd_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_8c086b47-2c2b-40aa-9e55-9d635083383a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_62b1c4ae-3734-4a21-8dca-1c52d92972cd" xlink:to="loc_us-gaap_ClassOfStockDomain_8c086b47-2c2b-40aa-9e55-9d635083383a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_938e12a8-4249-4cf8-9c4e-9fc7454bed97" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_8c086b47-2c2b-40aa-9e55-9d635083383a" xlink:to="loc_us-gaap_CommonClassAMember_938e12a8-4249-4cf8-9c4e-9fc7454bed97" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_CommonClassVMember_d51b5ef2-7852-4711-8994-54d3ce5ebc16" xlink:href="bakkt-20240630.xsd#bakkt_CommonClassVMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_8c086b47-2c2b-40aa-9e55-9d635083383a" xlink:to="loc_bakkt_CommonClassVMember_d51b5ef2-7852-4711-8994-54d3ce5ebc16" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_d0661cd2-4227-4575-82cb-d60f7b19012b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_82f2f170-1c94-4860-bd82-1d0889343a9f" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_d0661cd2-4227-4575-82cb-d60f7b19012b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_f32a73b3-1af0-47a3-abbd-0c7db880a2c0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_d0661cd2-4227-4575-82cb-d60f7b19012b" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_f32a73b3-1af0-47a3-abbd-0c7db880a2c0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_5b636beb-a86c-4d5f-9ec8-5b303230b76f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_d0661cd2-4227-4575-82cb-d60f7b19012b" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_5b636beb-a86c-4d5f-9ec8-5b303230b76f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_ff6a105d-7387-46e6-9da2-cc8ad3a3cded" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_d0661cd2-4227-4575-82cb-d60f7b19012b" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_ff6a105d-7387-46e6-9da2-cc8ad3a3cded" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_NoncontrollingInterestIncreaseFromShareBasedCompensationArrangement_5e0dc026-b520-485c-bdcb-3ce5b9552ffb" xlink:href="bakkt-20240630.xsd#bakkt_NoncontrollingInterestIncreaseFromShareBasedCompensationArrangement"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_d0661cd2-4227-4575-82cb-d60f7b19012b" xlink:to="loc_bakkt_NoncontrollingInterestIncreaseFromShareBasedCompensationArrangement_5e0dc026-b520-485c-bdcb-3ce5b9552ffb" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_StockIssuedDuringPeriodSharesWarrantsExercised_b7e64453-3371-4b80-94c3-9251421c6e0c" xlink:href="bakkt-20240630.xsd#bakkt_StockIssuedDuringPeriodSharesWarrantsExercised"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_d0661cd2-4227-4575-82cb-d60f7b19012b" xlink:to="loc_bakkt_StockIssuedDuringPeriodSharesWarrantsExercised_b7e64453-3371-4b80-94c3-9251421c6e0c" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_ee38beb7-cabf-4abb-b2d5-9c1d6a900feb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_d0661cd2-4227-4575-82cb-d60f7b19012b" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_ee38beb7-cabf-4abb-b2d5-9c1d6a900feb" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_3322f7a1-c3f7-4d58-9e09-2e91019d8f65" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_d0661cd2-4227-4575-82cb-d60f7b19012b" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_3322f7a1-c3f7-4d58-9e09-2e91019d8f65" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_1df664f9-35d2-4ee9-aeb7-1865838e742f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_d0661cd2-4227-4575-82cb-d60f7b19012b" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_1df664f9-35d2-4ee9-aeb7-1865838e742f" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_a36acff4-568f-4bc4-8bc8-9f72eebdd0ad" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_d0661cd2-4227-4575-82cb-d60f7b19012b" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_a36acff4-568f-4bc4-8bc8-9f72eebdd0ad" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_992e4dfd-c40a-460b-92b3-e6618da6d32d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_d0661cd2-4227-4575-82cb-d60f7b19012b" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_992e4dfd-c40a-460b-92b3-e6618da6d32d" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities_c7ac57ef-04a4-4782-8907-239ac248e076" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_d0661cd2-4227-4575-82cb-d60f7b19012b" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities_c7ac57ef-04a4-4782-8907-239ac248e076" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesAcquisitions_779de4b2-9acc-4c32-90ac-63c07651eda6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodSharesAcquisitions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_d0661cd2-4227-4575-82cb-d60f7b19012b" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesAcquisitions_779de4b2-9acc-4c32-90ac-63c07651eda6" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueAcquisitions_6f5085c7-9fd0-46a0-bb60-e093f9f03edf" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodValueAcquisitions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_d0661cd2-4227-4575-82cb-d60f7b19012b" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueAcquisitions_6f5085c7-9fd0-46a0-bb60-e093f9f03edf" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_c95a71b0-a9f9-46a4-bc8e-dd57db0fbaa1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_d0661cd2-4227-4575-82cb-d60f7b19012b" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_c95a71b0-a9f9-46a4-bc8e-dd57db0fbaa1" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax_4ce406a0-b3dd-4e36-b63d-ec8e311a77ac" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_d0661cd2-4227-4575-82cb-d60f7b19012b" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax_4ce406a0-b3dd-4e36-b63d-ec8e311a77ac" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_78279282-ec56-44cf-bf5a-ce35af7c0402" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProfitLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_d0661cd2-4227-4575-82cb-d60f7b19012b" xlink:to="loc_us-gaap_ProfitLoss_78279282-ec56-44cf-bf5a-ce35af7c0402" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_cbeb6b3e-5c08-4032-bd3a-1b7eec144c88" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_e1d97070-76b2-4c08-86c5-536dbeacd761" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.bakkt.com/role/ConsolidatedStatementsofCashFlows" xlink:type="simple" xlink:href="bakkt-20240630.xsd#ConsolidatedStatementsofCashFlows"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/ConsolidatedStatementsofCashFlows" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_c5d520e7-df8f-439c-8424-67433f3b38c3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_1b434d64-2ae8-4c80-a3ad-2a0720dcbf50" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_c5d520e7-df8f-439c-8424-67433f3b38c3" xlink:to="loc_us-gaap_StatementTable_1b434d64-2ae8-4c80-a3ad-2a0720dcbf50" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_29f07931-efae-406f-8923-892e54eae453" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_1b434d64-2ae8-4c80-a3ad-2a0720dcbf50" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_29f07931-efae-406f-8923-892e54eae453" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_29f07931-efae-406f-8923-892e54eae453_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_29f07931-efae-406f-8923-892e54eae453" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_29f07931-efae-406f-8923-892e54eae453_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_235dc488-6bf9-42c5-b645-1a4418d8f423" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_29f07931-efae-406f-8923-892e54eae453" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_235dc488-6bf9-42c5-b645-1a4418d8f423" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_ApexCryptoLLCMember_198f06d7-29ad-4b86-b5e5-97e129aaa0c0" xlink:href="bakkt-20240630.xsd#bakkt_ApexCryptoLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_235dc488-6bf9-42c5-b645-1a4418d8f423" xlink:to="loc_bakkt_ApexCryptoLLCMember_198f06d7-29ad-4b86-b5e5-97e129aaa0c0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_BumpedFinancialLLCMember_3fbfb6c3-1c68-455f-9a3b-18bc1c16dad8" xlink:href="bakkt-20240630.xsd#bakkt_BumpedFinancialLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_235dc488-6bf9-42c5-b645-1a4418d8f423" xlink:to="loc_bakkt_BumpedFinancialLLCMember_3fbfb6c3-1c68-455f-9a3b-18bc1c16dad8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_f4aac05d-2c4f-4ed3-9832-625837873c6d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_c5d520e7-df8f-439c-8424-67433f3b38c3" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_f4aac05d-2c4f-4ed3-9832-625837873c6d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_717da32f-d058-4de7-a77f-9e9fa0c31576" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProfitLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_f4aac05d-2c4f-4ed3-9832-625837873c6d" xlink:to="loc_us-gaap_ProfitLoss_717da32f-d058-4de7-a77f-9e9fa0c31576" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_935eb3b8-cf3e-4c39-b67c-2fddb66a8f04" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_f4aac05d-2c4f-4ed3-9832-625837873c6d" xlink:to="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_935eb3b8-cf3e-4c39-b67c-2fddb66a8f04" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_f2cf23df-6bcb-43a7-8e7e-105717ad8bbf" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_935eb3b8-cf3e-4c39-b67c-2fddb66a8f04" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_f2cf23df-6bcb-43a7-8e7e-105717ad8bbf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAssetAmortizationExpense_4366c045-55b1-4738-a378-7a25495fc528" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseRightOfUseAssetAmortizationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_935eb3b8-cf3e-4c39-b67c-2fddb66a8f04" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAssetAmortizationExpense_4366c045-55b1-4738-a378-7a25495fc528" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_cf7e42de-40c6-416e-85ac-dccaee32c298" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_935eb3b8-cf3e-4c39-b67c-2fddb66a8f04" xlink:to="loc_us-gaap_ShareBasedCompensation_cf7e42de-40c6-416e-85ac-dccaee32c298" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_ShareBasedPaymentArrangementExpenseAndDeferredCompensationArrangementWithIndividualCompensationExpense_760a451b-45db-42d7-bbbc-d3dcc2539b5a" xlink:href="bakkt-20240630.xsd#bakkt_ShareBasedPaymentArrangementExpenseAndDeferredCompensationArrangementWithIndividualCompensationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_935eb3b8-cf3e-4c39-b67c-2fddb66a8f04" xlink:to="loc_bakkt_ShareBasedPaymentArrangementExpenseAndDeferredCompensationArrangementWithIndividualCompensationExpense_760a451b-45db-42d7-bbbc-d3dcc2539b5a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_444ff544-3b3d-43a5-b6d8-3c0f1258f293" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ImpairmentOfLongLivedAssetsHeldForUse"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_935eb3b8-cf3e-4c39-b67c-2fddb66a8f04" xlink:to="loc_us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_444ff544-3b3d-43a5-b6d8-3c0f1258f293" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfOtherAssets_235174e2-d293-4b40-a9d4-40c6ec0077cd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_GainLossOnSaleOfOtherAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_935eb3b8-cf3e-4c39-b67c-2fddb66a8f04" xlink:to="loc_us-gaap_GainLossOnSaleOfOtherAssets_235174e2-d293-4b40-a9d4-40c6ec0077cd" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAdjustmentOfWarrants_ffba863d-92de-4a96-85ef-e67f3810544d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAdjustmentOfWarrants"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_935eb3b8-cf3e-4c39-b67c-2fddb66a8f04" xlink:to="loc_us-gaap_FairValueAdjustmentOfWarrants_ffba863d-92de-4a96-85ef-e67f3810544d" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncashIncomeExpense_f6b2ec17-b664-4196-bb06-8c4ea96b71ba" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherNoncashIncomeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_935eb3b8-cf3e-4c39-b67c-2fddb66a8f04" xlink:to="loc_us-gaap_OtherNoncashIncomeExpense_f6b2ec17-b664-4196-bb06-8c4ea96b71ba" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_6fc84d35-ab5f-4b42-9044-c2b873bda0f2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_f4aac05d-2c4f-4ed3-9832-625837873c6d" xlink:to="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_6fc84d35-ab5f-4b42-9044-c2b873bda0f2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_ac51e72d-1f98-44f7-9b20-1b674e9c5bf3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_6fc84d35-ab5f-4b42-9044-c2b873bda0f2" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_ac51e72d-1f98-44f7-9b20-1b674e9c5bf3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidExpense_e4ae6d31-6bd4-4484-90ad-f374012698c2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInPrepaidExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_6fc84d35-ab5f-4b42-9044-c2b873bda0f2" xlink:to="loc_us-gaap_IncreaseDecreaseInPrepaidExpense_e4ae6d31-6bd4-4484-90ad-f374012698c2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_5244c817-d333-4454-92ff-002b0c8a3e76" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_6fc84d35-ab5f-4b42-9044-c2b873bda0f2" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_5244c817-d333-4454-92ff-002b0c8a3e76" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_IncreaseDecreaseInPlatformOperatorCryptoAssetUnsettledTradesLiability_a17a8996-e8b5-46f5-871d-6134288a738e" xlink:href="bakkt-20240630.xsd#bakkt_IncreaseDecreaseInPlatformOperatorCryptoAssetUnsettledTradesLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_6fc84d35-ab5f-4b42-9044-c2b873bda0f2" xlink:to="loc_bakkt_IncreaseDecreaseInPlatformOperatorCryptoAssetUnsettledTradesLiability_a17a8996-e8b5-46f5-871d-6134288a738e" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInDueToRelatedParties_8ad54117-1fad-4187-97c2-cf72a95f36c9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInDueToRelatedParties"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_6fc84d35-ab5f-4b42-9044-c2b873bda0f2" xlink:to="loc_us-gaap_IncreaseDecreaseInDueToRelatedParties_8ad54117-1fad-4187-97c2-cf72a95f36c9" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_6e052afd-e63a-4a66-a5b5-30de58d4ddad" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_6fc84d35-ab5f-4b42-9044-c2b873bda0f2" xlink:to="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_6e052afd-e63a-4a66-a5b5-30de58d4ddad" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingLeaseLiability_13d70299-cc01-4c90-af75-f417b55f5374" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInOperatingLeaseLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_6fc84d35-ab5f-4b42-9044-c2b873bda0f2" xlink:to="loc_us-gaap_IncreaseDecreaseInOperatingLeaseLiability_13d70299-cc01-4c90-af75-f417b55f5374" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_IncreaseDecreaseInCustomerFundsPayable_ec75cfeb-57ec-4e16-b600-543372fdcfc3" xlink:href="bakkt-20240630.xsd#bakkt_IncreaseDecreaseInCustomerFundsPayable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_6fc84d35-ab5f-4b42-9044-c2b873bda0f2" xlink:to="loc_bakkt_IncreaseDecreaseInCustomerFundsPayable_ec75cfeb-57ec-4e16-b600-543372fdcfc3" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_10b839ef-c60e-4254-8c6d-3d46de1b412a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_6fc84d35-ab5f-4b42-9044-c2b873bda0f2" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_10b839ef-c60e-4254-8c6d-3d46de1b412a" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_56897b25-d05c-412a-bd87-f77d0238873b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_f4aac05d-2c4f-4ed3-9832-625837873c6d" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_56897b25-d05c-412a-bd87-f77d0238873b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_e6ab49c1-9346-44d4-aa49-acca98338bad" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_c5d520e7-df8f-439c-8424-67433f3b38c3" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_e6ab49c1-9346-44d4-aa49-acca98338bad" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireProductiveAssets_66ab6c50-3a1e-4d22-904b-3198e75be173" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsToAcquireProductiveAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_e6ab49c1-9346-44d4-aa49-acca98338bad" xlink:to="loc_us-gaap_PaymentsToAcquireProductiveAssets_66ab6c50-3a1e-4d22-904b-3198e75be173" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_dc1fc511-cb11-4ca5-8122-185c74f1da1d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_e6ab49c1-9346-44d4-aa49-acca98338bad" xlink:to="loc_us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_dc1fc511-cb11-4ca5-8122-185c74f1da1d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities_8410f3b2-167a-48ab-84bd-347dcc49127c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_e6ab49c1-9346-44d4-aa49-acca98338bad" xlink:to="loc_us-gaap_ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities_8410f3b2-167a-48ab-84bd-347dcc49127c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_9f2e4936-4159-4f90-b837-666cd34d97b8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_e6ab49c1-9346-44d4-aa49-acca98338bad" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_9f2e4936-4159-4f90-b837-666cd34d97b8" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_eaa13d2f-2dcb-4f5b-82ad-5b3ed6a0e8aa" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_e6ab49c1-9346-44d4-aa49-acca98338bad" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_eaa13d2f-2dcb-4f5b-82ad-5b3ed6a0e8aa" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_e9bdbaae-c7d0-4094-a0cd-50bee56db857" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_c5d520e7-df8f-439c-8424-67433f3b38c3" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_e9bdbaae-c7d0-4094-a0cd-50bee56db857" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_ce99dcf6-1742-4c87-b690-2b721f066cad" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_e9bdbaae-c7d0-4094-a0cd-50bee56db857" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_ce99dcf6-1742-4c87-b690-2b721f066cad" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromWarrantExercises_8952ae6f-14d7-496b-a567-1cb3c9da5c09" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromWarrantExercises"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_e9bdbaae-c7d0-4094-a0cd-50bee56db857" xlink:to="loc_us-gaap_ProceedsFromWarrantExercises_8952ae6f-14d7-496b-a567-1cb3c9da5c09" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_870224f4-b1d6-4552-9fe7-122e6023bdbc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_e9bdbaae-c7d0-4094-a0cd-50bee56db857" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_870224f4-b1d6-4552-9fe7-122e6023bdbc" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_82a3083e-1f5a-4cc0-9d9c-b19ea09a1cda" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_e9bdbaae-c7d0-4094-a0cd-50bee56db857" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_82a3083e-1f5a-4cc0-9d9c-b19ea09a1cda" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_03010bbf-c22c-4ed5-ba04-946b9f67fbe7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_c5d520e7-df8f-439c-8424-67433f3b38c3" xlink:to="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_03010bbf-c22c-4ed5-ba04-946b9f67fbe7" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_908559b1-7920-4e30-a6db-d15503b52d0a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_c5d520e7-df8f-439c-8424-67433f3b38c3" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_908559b1-7920-4e30-a6db-d15503b52d0a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_0c793941-f386-466f-b5b9-4e88cb1a4ccb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_c5d520e7-df8f-439c-8424-67433f3b38c3" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_0c793941-f386-466f-b5b9-4e88cb1a4ccb" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_637ffcdc-c43e-4c20-8c0b-3a8badf5a484" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SupplementalCashFlowInformationAbstract_78691133-3549-419b-8d33-03fb5089c35c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SupplementalCashFlowInformationAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_c5d520e7-df8f-439c-8424-67433f3b38c3" xlink:to="loc_us-gaap_SupplementalCashFlowInformationAbstract_78691133-3549-419b-8d33-03fb5089c35c" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_b486093f-75a4-4576-9190-b9b7a6f0bd26" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_78691133-3549-419b-8d33-03fb5089c35c" xlink:to="loc_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_b486093f-75a4-4576-9190-b9b7a6f0bd26" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_81af5cef-ae3c-4388-bdc0-131e5069f04a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_c5d520e7-df8f-439c-8424-67433f3b38c3" xlink:to="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_81af5cef-ae3c-4388-bdc0-131e5069f04a" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalExpendituresIncurredButNotYetPaid_34a79048-39f2-4a4d-9c7c-221eb7721adb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CapitalExpendituresIncurredButNotYetPaid"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_81af5cef-ae3c-4388-bdc0-131e5069f04a" xlink:to="loc_us-gaap_CapitalExpendituresIncurredButNotYetPaid_34a79048-39f2-4a4d-9c7c-221eb7721adb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract_c8c82632-9d1a-45d2-b87f-d305866a8623" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_c5d520e7-df8f-439c-8424-67433f3b38c3" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract_c8c82632-9d1a-45d2-b87f-d305866a8623" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_b7416a7f-c5d5-434a-8a1d-ee1d46165c09" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract_c8c82632-9d1a-45d2-b87f-d305866a8623" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_b7416a7f-c5d5-434a-8a1d-ee1d46165c09" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashCurrent_6015a280-d2a1-441e-ae9e-466380ab5b3c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestrictedCashCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract_c8c82632-9d1a-45d2-b87f-d305866a8623" xlink:to="loc_us-gaap_RestrictedCashCurrent_6015a280-d2a1-441e-ae9e-466380ab5b3c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_CustomerFundsCurrent_0ff74e97-dc0f-4349-98d7-902d5470c287" xlink:href="bakkt-20240630.xsd#bakkt_CustomerFundsCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract_c8c82632-9d1a-45d2-b87f-d305866a8623" xlink:to="loc_bakkt_CustomerFundsCurrent_0ff74e97-dc0f-4349-98d7-902d5470c287" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepositsAssetsCurrent_7e0c7c53-8a58-4d97-b275-16bf7011f629" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DepositsAssetsCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAbstract_c8c82632-9d1a-45d2-b87f-d305866a8623" xlink:to="loc_us-gaap_DepositsAssetsCurrent_7e0c7c53-8a58-4d97-b275-16bf7011f629" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_a22937cf-2cc8-4970-85f0-70b2a73c1100" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.bakkt.com/role/OrganizationandDescriptionofBusinessDetails" xlink:type="simple" xlink:href="bakkt-20240630.xsd#OrganizationandDescriptionofBusinessDetails"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/OrganizationandDescriptionofBusinessDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_a30bd61a-1651-4b52-ad9d-f31b98c9796c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_48a8b746-a61e-4452-84bd-765b6b5a62c1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_a30bd61a-1651-4b52-ad9d-f31b98c9796c" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_48a8b746-a61e-4452-84bd-765b6b5a62c1" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_86f4fe26-9d7d-4fcf-b2f8-b68d775cf801" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_48a8b746-a61e-4452-84bd-765b6b5a62c1" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_86f4fe26-9d7d-4fcf-b2f8-b68d775cf801" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_86f4fe26-9d7d-4fcf-b2f8-b68d775cf801_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_86f4fe26-9d7d-4fcf-b2f8-b68d775cf801" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_86f4fe26-9d7d-4fcf-b2f8-b68d775cf801_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_49b5447f-4c84-41b4-827f-90b0293eb879" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_86f4fe26-9d7d-4fcf-b2f8-b68d775cf801" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_49b5447f-4c84-41b4-827f-90b0293eb879" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_ApexCryptoLLCMember_4d39ed4e-3166-4ce6-970f-e4ccd5708497" xlink:href="bakkt-20240630.xsd#bakkt_ApexCryptoLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_49b5447f-4c84-41b4-827f-90b0293eb879" xlink:to="loc_bakkt_ApexCryptoLLCMember_4d39ed4e-3166-4ce6-970f-e4ccd5708497" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired_1f2e5028-780d-49ad-81c9-ee0531dc888a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_a30bd61a-1651-4b52-ad9d-f31b98c9796c" xlink:to="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired_1f2e5028-780d-49ad-81c9-ee0531dc888a" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.bakkt.com/role/SummaryofSignificantAccountingPoliciesDetails" xlink:type="simple" xlink:href="bakkt-20240630.xsd#SummaryofSignificantAccountingPoliciesDetails"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/SummaryofSignificantAccountingPoliciesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsLineItems_eb410e71-9a0e-4e48-bfc5-5ce1cc03d027" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashAndCashEquivalentsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfCashAndCashEquivalentsTable_8926fb39-6b03-4ae1-ac54-6fd91b142ac0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfCashAndCashEquivalentsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_eb410e71-9a0e-4e48-bfc5-5ce1cc03d027" xlink:to="loc_us-gaap_ScheduleOfCashAndCashEquivalentsTable_8926fb39-6b03-4ae1-ac54-6fd91b142ac0" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_315d910c-e9e8-4595-9de7-e37a51ceddfa" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfCashAndCashEquivalentsTable_8926fb39-6b03-4ae1-ac54-6fd91b142ac0" xlink:to="loc_us-gaap_StatementClassOfStockAxis_315d910c-e9e8-4595-9de7-e37a51ceddfa" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_315d910c-e9e8-4595-9de7-e37a51ceddfa_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_315d910c-e9e8-4595-9de7-e37a51ceddfa" xlink:to="loc_us-gaap_ClassOfStockDomain_315d910c-e9e8-4595-9de7-e37a51ceddfa_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_6b1f5764-9ede-4537-80ef-ccddab8657fb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_315d910c-e9e8-4595-9de7-e37a51ceddfa" xlink:to="loc_us-gaap_ClassOfStockDomain_6b1f5764-9ede-4537-80ef-ccddab8657fb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_dffa3609-a317-4f25-a662-7c92aa21fb9c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_6b1f5764-9ede-4537-80ef-ccddab8657fb" xlink:to="loc_us-gaap_CommonClassAMember_dffa3609-a317-4f25-a662-7c92aa21fb9c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_CommonClassVMember_d1e0c3e0-851b-40b8-be9d-ea56000610ca" xlink:href="bakkt-20240630.xsd#bakkt_CommonClassVMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_6b1f5764-9ede-4537-80ef-ccddab8657fb" xlink:to="loc_bakkt_CommonClassVMember_d1e0c3e0-851b-40b8-be9d-ea56000610ca" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_67fbe202-57b7-4d9b-ba21-76ac458d7eb6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfCashAndCashEquivalentsTable_8926fb39-6b03-4ae1-ac54-6fd91b142ac0" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_67fbe202-57b7-4d9b-ba21-76ac458d7eb6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_67fbe202-57b7-4d9b-ba21-76ac458d7eb6_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_67fbe202-57b7-4d9b-ba21-76ac458d7eb6" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_67fbe202-57b7-4d9b-ba21-76ac458d7eb6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_8f7a6d72-1515-41f9-a4b6-23076a540002" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_67fbe202-57b7-4d9b-ba21-76ac458d7eb6" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_8f7a6d72-1515-41f9-a4b6-23076a540002" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_4d3285d4-8f28-4430-af43-236aead94cfa" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_8f7a6d72-1515-41f9-a4b6-23076a540002" xlink:to="loc_us-gaap_SubsequentEventMember_4d3285d4-8f28-4430-af43-236aead94cfa" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_51519d13-08da-489e-b044-bc73e2a6599d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfCashAndCashEquivalentsTable_8926fb39-6b03-4ae1-ac54-6fd91b142ac0" xlink:to="loc_us-gaap_CreditFacilityAxis_51519d13-08da-489e-b044-bc73e2a6599d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_51519d13-08da-489e-b044-bc73e2a6599d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_51519d13-08da-489e-b044-bc73e2a6599d" xlink:to="loc_us-gaap_CreditFacilityDomain_51519d13-08da-489e-b044-bc73e2a6599d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_f3cba5c7-d593-40da-bc42-0e85aa9376de" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_51519d13-08da-489e-b044-bc73e2a6599d" xlink:to="loc_us-gaap_CreditFacilityDomain_f3cba5c7-d593-40da-bc42-0e85aa9376de" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_f76e2543-bd49-42c0-833a-c04fac887f2a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LineOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_f3cba5c7-d593-40da-bc42-0e85aa9376de" xlink:to="loc_us-gaap_LineOfCreditMember_f76e2543-bd49-42c0-833a-c04fac887f2a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_e425eb30-d25f-41f1-85bb-9c494df60420" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfCashAndCashEquivalentsTable_8926fb39-6b03-4ae1-ac54-6fd91b142ac0" xlink:to="loc_us-gaap_DebtInstrumentAxis_e425eb30-d25f-41f1-85bb-9c494df60420" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_e425eb30-d25f-41f1-85bb-9c494df60420_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_e425eb30-d25f-41f1-85bb-9c494df60420" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_e425eb30-d25f-41f1-85bb-9c494df60420_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_bbe2297f-a268-46c7-a2f9-eb8da2bca8c2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_e425eb30-d25f-41f1-85bb-9c494df60420" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_bbe2297f-a268-46c7-a2f9-eb8da2bca8c2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_ICECreditFacilityMember_0f405ffa-980b-42d0-b9c3-cf2b9e2aee58" xlink:href="bakkt-20240630.xsd#bakkt_ICECreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_bbe2297f-a268-46c7-a2f9-eb8da2bca8c2" xlink:to="loc_bakkt_ICECreditFacilityMember_0f405ffa-980b-42d0-b9c3-cf2b9e2aee58" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_e0343892-bc36-4b1e-9fa6-9eac2d86d848" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_eb410e71-9a0e-4e48-bfc5-5ce1cc03d027" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_e0343892-bc36-4b1e-9fa6-9eac2d86d848" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityNoteStockSplitConversionRatio1_51012586-0c15-428f-afc9-a7733bc73ac7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockholdersEquityNoteStockSplitConversionRatio1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_eb410e71-9a0e-4e48-bfc5-5ce1cc03d027" xlink:to="loc_us-gaap_StockholdersEquityNoteStockSplitConversionRatio1_51012586-0c15-428f-afc9-a7733bc73ac7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_RestructuringAndRelatedCostExpectedCashSavingsFromPositionsEliminatedNext12Months_cd2655e6-21f1-4340-98a9-a938958d78ce" xlink:href="bakkt-20240630.xsd#bakkt_RestructuringAndRelatedCostExpectedCashSavingsFromPositionsEliminatedNext12Months"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_eb410e71-9a0e-4e48-bfc5-5ce1cc03d027" xlink:to="loc_bakkt_RestructuringAndRelatedCostExpectedCashSavingsFromPositionsEliminatedNext12Months_cd2655e6-21f1-4340-98a9-a938958d78ce" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_MinimumCapitalRequirementsRegulatoryCapitalAndInsuranceCollateralIncreaseDecrease_691dd9f8-d6a0-4db2-97ec-b42498f1390f" xlink:href="bakkt-20240630.xsd#bakkt_MinimumCapitalRequirementsRegulatoryCapitalAndInsuranceCollateralIncreaseDecrease"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_eb410e71-9a0e-4e48-bfc5-5ce1cc03d027" xlink:to="loc_bakkt_MinimumCapitalRequirementsRegulatoryCapitalAndInsuranceCollateralIncreaseDecrease_691dd9f8-d6a0-4db2-97ec-b42498f1390f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_MinimumCapitalRequirementsRegulatoryCapitalAndInsuranceCollateralIncreaseDecrease_c1ee7e3e-0f82-4562-a190-b2c8f2355612" xlink:href="bakkt-20240630.xsd#bakkt_MinimumCapitalRequirementsRegulatoryCapitalAndInsuranceCollateralIncreaseDecrease"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_AmountOfDuplicateRegulatoryCapitalRequirementsEliminated_cf72fbe7-c057-4c1e-93a9-25e7a487bc06" xlink:href="bakkt-20240630.xsd#bakkt_AmountOfDuplicateRegulatoryCapitalRequirementsEliminated"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_eb410e71-9a0e-4e48-bfc5-5ce1cc03d027" xlink:to="loc_bakkt_AmountOfDuplicateRegulatoryCapitalRequirementsEliminated_cf72fbe7-c057-4c1e-93a9-25e7a487bc06" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_cd595d32-1314-4c76-aeda-ee83c3365f5f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProfitLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_eb410e71-9a0e-4e48-bfc5-5ce1cc03d027" xlink:to="loc_us-gaap_ProfitLoss_cd595d32-1314-4c76-aeda-ee83c3365f5f" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d5a45d90-d6b8-47cb-926f-c6ce34352755" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_eb410e71-9a0e-4e48-bfc5-5ce1cc03d027" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_d5a45d90-d6b8-47cb-926f-c6ce34352755" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_9c433a2b-1532-4540-af92-f8a2832aab4a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_eb410e71-9a0e-4e48-bfc5-5ce1cc03d027" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_9c433a2b-1532-4540-af92-f8a2832aab4a" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterestCurrent_1de2de28-dfe6-4253-a874-2c796d658114" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterestCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_eb410e71-9a0e-4e48-bfc5-5ce1cc03d027" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterestCurrent_1de2de28-dfe6-4253-a874-2c796d658114" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_43251342-ccdb-404f-ab82-eec986409b41" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CashAndCashEquivalentsLineItems_eb410e71-9a0e-4e48-bfc5-5ce1cc03d027" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_43251342-ccdb-404f-ab82-eec986409b41" xlink:type="arc" order="10"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.bakkt.com/role/RevenuefromContractswithCustomersDisaggregationofRevenueDetails" xlink:type="simple" xlink:href="bakkt-20240630.xsd#RevenuefromContractswithCustomersDisaggregationofRevenueDetails"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/RevenuefromContractswithCustomersDisaggregationofRevenueDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_1a222331-1bf5-407f-8422-12f5c74df46b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_11b2f019-3229-42f1-98c1-c64e307833c4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_1a222331-1bf5-407f-8422-12f5c74df46b" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_11b2f019-3229-42f1-98c1-c64e307833c4" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_2ede95a8-bdf4-4a0a-aa67-ee6900ad8992" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_11b2f019-3229-42f1-98c1-c64e307833c4" xlink:to="loc_srt_ProductOrServiceAxis_2ede95a8-bdf4-4a0a-aa67-ee6900ad8992" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_2ede95a8-bdf4-4a0a-aa67-ee6900ad8992_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_2ede95a8-bdf4-4a0a-aa67-ee6900ad8992" xlink:to="loc_srt_ProductsAndServicesDomain_2ede95a8-bdf4-4a0a-aa67-ee6900ad8992_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_4ddd0194-208f-4570-8f4c-dbb27fbe88c0" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_2ede95a8-bdf4-4a0a-aa67-ee6900ad8992" xlink:to="loc_srt_ProductsAndServicesDomain_4ddd0194-208f-4570-8f4c-dbb27fbe88c0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_TransactionRevenueNetMember_3eca7c72-b1a5-4dd2-b6b6-c7463c883a26" xlink:href="bakkt-20240630.xsd#bakkt_TransactionRevenueNetMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_4ddd0194-208f-4570-8f4c-dbb27fbe88c0" xlink:to="loc_bakkt_TransactionRevenueNetMember_3eca7c72-b1a5-4dd2-b6b6-c7463c883a26" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_SubscriptionAndServiceRevenueMember_97940593-e57e-4c14-b49f-34a0617ec943" xlink:href="bakkt-20240630.xsd#bakkt_SubscriptionAndServiceRevenueMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_4ddd0194-208f-4570-8f4c-dbb27fbe88c0" xlink:to="loc_bakkt_SubscriptionAndServiceRevenueMember_97940593-e57e-4c14-b49f-34a0617ec943" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerSalesChannelAxis_2269aec8-81a4-491d-8966-8e95e8e36589" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ContractWithCustomerSalesChannelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_11b2f019-3229-42f1-98c1-c64e307833c4" xlink:to="loc_us-gaap_ContractWithCustomerSalesChannelAxis_2269aec8-81a4-491d-8966-8e95e8e36589" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerSalesChannelDomain_2269aec8-81a4-491d-8966-8e95e8e36589_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ContractWithCustomerSalesChannelDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ContractWithCustomerSalesChannelAxis_2269aec8-81a4-491d-8966-8e95e8e36589" xlink:to="loc_us-gaap_ContractWithCustomerSalesChannelDomain_2269aec8-81a4-491d-8966-8e95e8e36589_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerSalesChannelDomain_535d1dd8-4f9e-4fab-987f-27ae63795fa5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ContractWithCustomerSalesChannelDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ContractWithCustomerSalesChannelAxis_2269aec8-81a4-491d-8966-8e95e8e36589" xlink:to="loc_us-gaap_ContractWithCustomerSalesChannelDomain_535d1dd8-4f9e-4fab-987f-27ae63795fa5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_SalesChannelLoyaltyRedemptionPlatformMember_4a7ca286-5ee4-4c48-88eb-04cb5f4b2912" xlink:href="bakkt-20240630.xsd#bakkt_SalesChannelLoyaltyRedemptionPlatformMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ContractWithCustomerSalesChannelDomain_535d1dd8-4f9e-4fab-987f-27ae63795fa5" xlink:to="loc_bakkt_SalesChannelLoyaltyRedemptionPlatformMember_4a7ca286-5ee4-4c48-88eb-04cb5f4b2912" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_SalesChannelAlternativePaymentPlatformMember_7358b028-0318-4d84-8f6b-9f2f7fe12cfa" xlink:href="bakkt-20240630.xsd#bakkt_SalesChannelAlternativePaymentPlatformMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ContractWithCustomerSalesChannelDomain_535d1dd8-4f9e-4fab-987f-27ae63795fa5" xlink:to="loc_bakkt_SalesChannelAlternativePaymentPlatformMember_7358b028-0318-4d84-8f6b-9f2f7fe12cfa" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_1e12d706-a33a-41ae-a30e-7b114f52730c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_1a222331-1bf5-407f-8422-12f5c74df46b" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_1e12d706-a33a-41ae-a30e-7b114f52730c" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.bakkt.com/role/RevenuefromContractswithCustomersNarrativeDetails" xlink:type="simple" xlink:href="bakkt-20240630.xsd#RevenuefromContractswithCustomersNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/RevenuefromContractswithCustomersNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_29ebfed8-4ca6-4c03-8aea-c3d1aa4846f6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_758834e0-f5d4-491c-a503-58702decb905" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_29ebfed8-4ca6-4c03-8aea-c3d1aa4846f6" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_758834e0-f5d4-491c-a503-58702decb905" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_f9c98cef-47f4-438c-a1f6-f695cf6173ad" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_758834e0-f5d4-491c-a503-58702decb905" xlink:to="loc_srt_ProductOrServiceAxis_f9c98cef-47f4-438c-a1f6-f695cf6173ad" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_f9c98cef-47f4-438c-a1f6-f695cf6173ad_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_f9c98cef-47f4-438c-a1f6-f695cf6173ad" xlink:to="loc_srt_ProductsAndServicesDomain_f9c98cef-47f4-438c-a1f6-f695cf6173ad_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_e3ff74ac-d081-4528-b2dc-4faff6a0a5ff" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_f9c98cef-47f4-438c-a1f6-f695cf6173ad" xlink:to="loc_srt_ProductsAndServicesDomain_e3ff74ac-d081-4528-b2dc-4faff6a0a5ff" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_SubscriptionFeesMember_b4e8c34a-b1e4-4f9e-aeb7-e13ff8e1bdc0" xlink:href="bakkt-20240630.xsd#bakkt_SubscriptionFeesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_e3ff74ac-d081-4528-b2dc-4faff6a0a5ff" xlink:to="loc_bakkt_SubscriptionFeesMember_b4e8c34a-b1e4-4f9e-aeb7-e13ff8e1bdc0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_ServiceFeesMember_556c5d65-b655-40e4-b24b-ccdf0471c4f4" xlink:href="bakkt-20240630.xsd#bakkt_ServiceFeesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_e3ff74ac-d081-4528-b2dc-4faff6a0a5ff" xlink:to="loc_bakkt_ServiceFeesMember_556c5d65-b655-40e4-b24b-ccdf0471c4f4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_b2a91607-964a-441f-b0db-d290b8553b24" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_758834e0-f5d4-491c-a503-58702decb905" xlink:to="loc_srt_RangeAxis_b2a91607-964a-441f-b0db-d290b8553b24" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_b2a91607-964a-441f-b0db-d290b8553b24_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_b2a91607-964a-441f-b0db-d290b8553b24" xlink:to="loc_srt_RangeMember_b2a91607-964a-441f-b0db-d290b8553b24_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_928588d0-d149-407a-bb22-0fe8a7436364" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_b2a91607-964a-441f-b0db-d290b8553b24" xlink:to="loc_srt_RangeMember_928588d0-d149-407a-bb22-0fe8a7436364" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_e1e40b0c-12e0-434a-a318-edac0b790b7b" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_928588d0-d149-407a-bb22-0fe8a7436364" xlink:to="loc_srt_MinimumMember_e1e40b0c-12e0-434a-a318-edac0b790b7b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_7f861605-d0f1-471d-8376-2a638bf5eb32" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_928588d0-d149-407a-bb22-0fe8a7436364" xlink:to="loc_srt_MaximumMember_7f861605-d0f1-471d-8376-2a638bf5eb32" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeographicDistributionAxis_76f98e86-b551-48e9-af44-5735e645887e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_GeographicDistributionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_758834e0-f5d4-491c-a503-58702decb905" xlink:to="loc_us-gaap_GeographicDistributionAxis_76f98e86-b551-48e9-af44-5735e645887e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeographicDistributionDomain_76f98e86-b551-48e9-af44-5735e645887e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_GeographicDistributionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_GeographicDistributionAxis_76f98e86-b551-48e9-af44-5735e645887e" xlink:to="loc_us-gaap_GeographicDistributionDomain_76f98e86-b551-48e9-af44-5735e645887e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeographicDistributionDomain_9dca2c1d-a13f-4ded-8805-549bd33f323e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_GeographicDistributionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_GeographicDistributionAxis_76f98e86-b551-48e9-af44-5735e645887e" xlink:to="loc_us-gaap_GeographicDistributionDomain_9dca2c1d-a13f-4ded-8805-549bd33f323e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeographicDistributionForeignMember_23b3fc5c-c1d1-4df5-9afc-df2f314d90df" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_GeographicDistributionForeignMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GeographicDistributionDomain_9dca2c1d-a13f-4ded-8805-549bd33f323e" xlink:to="loc_us-gaap_GeographicDistributionForeignMember_23b3fc5c-c1d1-4df5-9afc-df2f314d90df" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_8a8d96bb-0cdf-4581-a7c3-18ece91ec5b0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_29ebfed8-4ca6-4c03-8aea-c3d1aa4846f6" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_8a8d96bb-0cdf-4581-a7c3-18ece91ec5b0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfReportableSegments_baa59ec3-dfb3-438d-bf01-de9484a83aaa" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NumberOfReportableSegments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_29ebfed8-4ca6-4c03-8aea-c3d1aa4846f6" xlink:to="loc_us-gaap_NumberOfReportableSegments_baa59ec3-dfb3-438d-bf01-de9484a83aaa" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligation_bde9266d-9816-4dde-9681-789e250feff8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RevenueRemainingPerformanceObligation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_29ebfed8-4ca6-4c03-8aea-c3d1aa4846f6" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligation_bde9266d-9816-4dde-9681-789e250feff8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_RevenueRemainingPerformanceObligationRevenueRecognitionPeriod_f84c4377-9137-4492-bdfa-ec8dc20cd11d" xlink:href="bakkt-20240630.xsd#bakkt_RevenueRemainingPerformanceObligationRevenueRecognitionPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_29ebfed8-4ca6-4c03-8aea-c3d1aa4846f6" xlink:to="loc_bakkt_RevenueRemainingPerformanceObligationRevenueRecognitionPeriod_f84c4377-9137-4492-bdfa-ec8dc20cd11d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalizedContractCostAmortization_30a0b4f3-91c8-4e7a-89da-7ae1e468654c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CapitalizedContractCostAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_29ebfed8-4ca6-4c03-8aea-c3d1aa4846f6" xlink:to="loc_us-gaap_CapitalizedContractCostAmortization_30a0b4f3-91c8-4e7a-89da-7ae1e468654c" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.bakkt.com/role/BusinessCombinationandAssetAcquisitionNarrativeDetails" xlink:type="simple" xlink:href="bakkt-20240630.xsd#BusinessCombinationandAssetAcquisitionNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/BusinessCombinationandAssetAcquisitionNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_ee431a08-84ff-4995-91b8-e8c0c4c11d23" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_8316fe64-6db7-4fb0-8075-f7732ef2dae5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_ee431a08-84ff-4995-91b8-e8c0c4c11d23" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_8316fe64-6db7-4fb0-8075-f7732ef2dae5" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_45fb570c-4eeb-46d8-9e25-ca141beafea9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_8316fe64-6db7-4fb0-8075-f7732ef2dae5" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_45fb570c-4eeb-46d8-9e25-ca141beafea9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_45fb570c-4eeb-46d8-9e25-ca141beafea9_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_45fb570c-4eeb-46d8-9e25-ca141beafea9" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_45fb570c-4eeb-46d8-9e25-ca141beafea9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_9dff81d0-1b87-4296-b557-46aea0660282" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_45fb570c-4eeb-46d8-9e25-ca141beafea9" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_9dff81d0-1b87-4296-b557-46aea0660282" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_BumpedFinancialLLCMember_75defa15-9365-43d9-874c-b56a42b1c566" xlink:href="bakkt-20240630.xsd#bakkt_BumpedFinancialLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_9dff81d0-1b87-4296-b557-46aea0660282" xlink:to="loc_bakkt_BumpedFinancialLLCMember_75defa15-9365-43d9-874c-b56a42b1c566" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_ApexCryptoLLCMember_f4fb1e34-d2e5-40fc-964c-b6728af4a46c" xlink:href="bakkt-20240630.xsd#bakkt_ApexCryptoLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_9dff81d0-1b87-4296-b557-46aea0660282" xlink:to="loc_bakkt_ApexCryptoLLCMember_f4fb1e34-d2e5-40fc-964c-b6728af4a46c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityInterestIssuedOrIssuableByTypeAxis_a874bd45-92da-4c78-bc04-e42b753d0e81" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquityInterestIssuedOrIssuableByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_8316fe64-6db7-4fb0-8075-f7732ef2dae5" xlink:to="loc_us-gaap_EquityInterestIssuedOrIssuableByTypeAxis_a874bd45-92da-4c78-bc04-e42b753d0e81" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityInterestIssuedOrIssuableTypeDomain_a874bd45-92da-4c78-bc04-e42b753d0e81_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquityInterestIssuedOrIssuableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_EquityInterestIssuedOrIssuableByTypeAxis_a874bd45-92da-4c78-bc04-e42b753d0e81" xlink:to="loc_us-gaap_EquityInterestIssuedOrIssuableTypeDomain_a874bd45-92da-4c78-bc04-e42b753d0e81_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityInterestIssuedOrIssuableTypeDomain_15df4ee2-9678-4387-8ec5-cb0250f59824" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquityInterestIssuedOrIssuableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_EquityInterestIssuedOrIssuableByTypeAxis_a874bd45-92da-4c78-bc04-e42b753d0e81" xlink:to="loc_us-gaap_EquityInterestIssuedOrIssuableTypeDomain_15df4ee2-9678-4387-8ec5-cb0250f59824" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_504d1510-25c0-43a1-9010-b8cd4b9fb500" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityInterestIssuedOrIssuableTypeDomain_15df4ee2-9678-4387-8ec5-cb0250f59824" xlink:to="loc_us-gaap_CommonClassAMember_504d1510-25c0-43a1-9010-b8cd4b9fb500" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_022d88dc-f593-4872-b063-e2d47740eeec" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_8316fe64-6db7-4fb0-8075-f7732ef2dae5" xlink:to="loc_srt_RangeAxis_022d88dc-f593-4872-b063-e2d47740eeec" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_022d88dc-f593-4872-b063-e2d47740eeec_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_022d88dc-f593-4872-b063-e2d47740eeec" xlink:to="loc_srt_RangeMember_022d88dc-f593-4872-b063-e2d47740eeec_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_4ec86aff-cf4a-436e-801c-bb8f71ddb4c2" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_022d88dc-f593-4872-b063-e2d47740eeec" xlink:to="loc_srt_RangeMember_4ec86aff-cf4a-436e-801c-bb8f71ddb4c2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_097a1ee2-3525-4557-b8fa-4668ea4d30a9" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_4ec86aff-cf4a-436e-801c-bb8f71ddb4c2" xlink:to="loc_srt_MaximumMember_097a1ee2-3525-4557-b8fa-4668ea4d30a9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired_7c9ccf8a-0768-4578-8112-78a63da35909" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_ee431a08-84ff-4995-91b8-e8c0c4c11d23" xlink:to="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired_7c9ccf8a-0768-4578-8112-78a63da35909" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesGross_0b477264-0fd5-4485-99af-c093ef787b93" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsToAcquireBusinessesGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_ee431a08-84ff-4995-91b8-e8c0c4c11d23" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesGross_0b477264-0fd5-4485-99af-c093ef787b93" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable_ece1033a-b310-4c93-b935-184adaa07c96" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_ee431a08-84ff-4995-91b8-e8c0c4c11d23" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable_ece1033a-b310-4c93-b935-184adaa07c96" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_PaymentsToAcquireBusinessesGrossWorkingCapital_d668a3fa-2d7a-49f4-aea2-07cf0ef5fd75" xlink:href="bakkt-20240630.xsd#bakkt_PaymentsToAcquireBusinessesGrossWorkingCapital"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_ee431a08-84ff-4995-91b8-e8c0c4c11d23" xlink:to="loc_bakkt_PaymentsToAcquireBusinessesGrossWorkingCapital_d668a3fa-2d7a-49f4-aea2-07cf0ef5fd75" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_BusinessCombinationContingentConsiderationEquityInterestsIssuedAndIssuable_b5daea7d-f130-4df9-9672-5c1d177118ae" xlink:href="bakkt-20240630.xsd#bakkt_BusinessCombinationContingentConsiderationEquityInterestsIssuedAndIssuable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_ee431a08-84ff-4995-91b8-e8c0c4c11d23" xlink:to="loc_bakkt_BusinessCombinationContingentConsiderationEquityInterestsIssuedAndIssuable_b5daea7d-f130-4df9-9672-5c1d177118ae" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_6fad3cd3-e3fa-44c7-a34a-8971d1c25159" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationContingentConsiderationLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_ee431a08-84ff-4995-91b8-e8c0c4c11d23" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_6fad3cd3-e3fa-44c7-a34a-8971d1c25159" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionsProFormaRevenue_1a7a5702-cc34-46d7-bffe-28525d03c835" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionsProFormaRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_ee431a08-84ff-4995-91b8-e8c0c4c11d23" xlink:to="loc_us-gaap_BusinessAcquisitionsProFormaRevenue_1a7a5702-cc34-46d7-bffe-28525d03c835" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss_de6531bd-687e-4fe3-9e79-9119c2529f4c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_ee431a08-84ff-4995-91b8-e8c0c4c11d23" xlink:to="loc_us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss_de6531bd-687e-4fe3-9e79-9119c2529f4c" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferred1_ae78dbc6-eb5a-4b11-a364-dfab16b4170c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationConsiderationTransferred1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_ee431a08-84ff-4995-91b8-e8c0c4c11d23" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferred1_ae78dbc6-eb5a-4b11-a364-dfab16b4170c" xlink:type="arc" order="8"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.bakkt.com/role/BusinessCombinationandAssetAcquisitionScheduleofAssetsandLiabilitiesAcquiredDetails" xlink:type="simple" xlink:href="bakkt-20240630.xsd#BusinessCombinationandAssetAcquisitionScheduleofAssetsandLiabilitiesAcquiredDetails"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/BusinessCombinationandAssetAcquisitionScheduleofAssetsandLiabilitiesAcquiredDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_b0b6f118-4721-4f97-b7ac-6296425a8675" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_749c44ab-1818-4c0b-992f-f8ba804acf93" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_b0b6f118-4721-4f97-b7ac-6296425a8675" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_749c44ab-1818-4c0b-992f-f8ba804acf93" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_fa821317-52f6-4709-b40f-cf01e1e0a5ad" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_749c44ab-1818-4c0b-992f-f8ba804acf93" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_fa821317-52f6-4709-b40f-cf01e1e0a5ad" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_fa821317-52f6-4709-b40f-cf01e1e0a5ad_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_fa821317-52f6-4709-b40f-cf01e1e0a5ad" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_fa821317-52f6-4709-b40f-cf01e1e0a5ad_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_0cb32a6b-a854-4897-bd10-814cde2432a1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_fa821317-52f6-4709-b40f-cf01e1e0a5ad" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_0cb32a6b-a854-4897-bd10-814cde2432a1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_ApexCryptoLLCMember_2d468a0e-32ba-4b8b-b763-409b68a65fa6" xlink:href="bakkt-20240630.xsd#bakkt_ApexCryptoLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_0cb32a6b-a854-4897-bd10-814cde2432a1" xlink:to="loc_bakkt_ApexCryptoLLCMember_2d468a0e-32ba-4b8b-b763-409b68a65fa6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityInterestIssuedOrIssuableByTypeAxis_652a961a-1f06-48cc-832f-9ecbffc920ed" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquityInterestIssuedOrIssuableByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_749c44ab-1818-4c0b-992f-f8ba804acf93" xlink:to="loc_us-gaap_EquityInterestIssuedOrIssuableByTypeAxis_652a961a-1f06-48cc-832f-9ecbffc920ed" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityInterestIssuedOrIssuableTypeDomain_652a961a-1f06-48cc-832f-9ecbffc920ed_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquityInterestIssuedOrIssuableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_EquityInterestIssuedOrIssuableByTypeAxis_652a961a-1f06-48cc-832f-9ecbffc920ed" xlink:to="loc_us-gaap_EquityInterestIssuedOrIssuableTypeDomain_652a961a-1f06-48cc-832f-9ecbffc920ed_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityInterestIssuedOrIssuableTypeDomain_ff64ec6f-dec8-44ef-a5c2-8447d1ed7a3e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquityInterestIssuedOrIssuableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_EquityInterestIssuedOrIssuableByTypeAxis_652a961a-1f06-48cc-832f-9ecbffc920ed" xlink:to="loc_us-gaap_EquityInterestIssuedOrIssuableTypeDomain_ff64ec6f-dec8-44ef-a5c2-8447d1ed7a3e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_01790d0b-6bec-45d7-b568-8fa043197003" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityInterestIssuedOrIssuableTypeDomain_ff64ec6f-dec8-44ef-a5c2-8447d1ed7a3e" xlink:to="loc_us-gaap_CommonClassAMember_01790d0b-6bec-45d7-b568-8fa043197003" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_478c6213-d38b-415f-b7eb-8af840908618" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_749c44ab-1818-4c0b-992f-f8ba804acf93" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_478c6213-d38b-415f-b7eb-8af840908618" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_478c6213-d38b-415f-b7eb-8af840908618_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_478c6213-d38b-415f-b7eb-8af840908618" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_478c6213-d38b-415f-b7eb-8af840908618_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_63967245-3429-46ee-a05c-352a240c799a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_478c6213-d38b-415f-b7eb-8af840908618" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_63967245-3429-46ee-a05c-352a240c799a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TechnologyBasedIntangibleAssetsMember_19873052-4964-4c63-9985-5ce7bd258c4a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TechnologyBasedIntangibleAssetsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_63967245-3429-46ee-a05c-352a240c799a" xlink:to="loc_us-gaap_TechnologyBasedIntangibleAssetsMember_19873052-4964-4c63-9985-5ce7bd258c4a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerRelationshipsMember_ce69a906-b267-4f85-93f7-9cc6e2ee30ee" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CustomerRelationshipsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_63967245-3429-46ee-a05c-352a240c799a" xlink:to="loc_us-gaap_CustomerRelationshipsMember_ce69a906-b267-4f85-93f7-9cc6e2ee30ee" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesGross_452d138e-cf42-463a-8502-98e65cbbe0d2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsToAcquireBusinessesGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_b0b6f118-4721-4f97-b7ac-6296425a8675" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesGross_452d138e-cf42-463a-8502-98e65cbbe0d2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_PaymentsToAcquireBusinessesGrossWorkingCapital_6b438a22-d70f-4e6f-b2d7-a05e012ff3eb" xlink:href="bakkt-20240630.xsd#bakkt_PaymentsToAcquireBusinessesGrossWorkingCapital"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_b0b6f118-4721-4f97-b7ac-6296425a8675" xlink:to="loc_bakkt_PaymentsToAcquireBusinessesGrossWorkingCapital_6b438a22-d70f-4e6f-b2d7-a05e012ff3eb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable_2fcbe3ee-e491-4b9e-b8b7-f34bf73ea4e9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_b0b6f118-4721-4f97-b7ac-6296425a8675" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable_2fcbe3ee-e491-4b9e-b8b7-f34bf73ea4e9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_BusinessCombinationContingentConsiderationEquityInterestsIssuedAndIssuable_45a51bec-b030-4410-afad-fc51eff8945d" xlink:href="bakkt-20240630.xsd#bakkt_BusinessCombinationContingentConsiderationEquityInterestsIssuedAndIssuable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_b0b6f118-4721-4f97-b7ac-6296425a8675" xlink:to="loc_bakkt_BusinessCombinationContingentConsiderationEquityInterestsIssuedAndIssuable_45a51bec-b030-4410-afad-fc51eff8945d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferred1_9de20750-09ca-4dec-ac85-0913f848beb7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationConsiderationTransferred1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_b0b6f118-4721-4f97-b7ac-6296425a8675" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferred1_9de20750-09ca-4dec-ac85-0913f848beb7" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssets_96321995-b001-4fed-a473-6d6e81389bc8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_b0b6f118-4721-4f97-b7ac-6296425a8675" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssets_96321995-b001-4fed-a473-6d6e81389bc8" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedSafeguardingAssetPlatformOperatorCryptoAsset_8c96dc7e-5bdc-4e4c-a50c-1f8bfa3b96cd" xlink:href="bakkt-20240630.xsd#bakkt_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedSafeguardingAssetPlatformOperatorCryptoAsset"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_b0b6f118-4721-4f97-b7ac-6296425a8675" xlink:to="loc_bakkt_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedSafeguardingAssetPlatformOperatorCryptoAsset_8c96dc7e-5bdc-4e4c-a50c-1f8bfa3b96cd" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentAssets_6ffc60dd-8a50-441e-92a1-6748dacca928" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_b0b6f118-4721-4f97-b7ac-6296425a8675" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentAssets_6ffc60dd-8a50-441e-92a1-6748dacca928" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_533be607-ef59-4bdd-9954-8d8d9ff8fb14" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_b0b6f118-4721-4f97-b7ac-6296425a8675" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_533be607-ef59-4bdd-9954-8d8d9ff8fb14" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_12aa793e-38b5-41b2-b81e-372deebc702f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Goodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_b0b6f118-4721-4f97-b7ac-6296425a8675" xlink:to="loc_us-gaap_Goodwill_12aa793e-38b5-41b2-b81e-372deebc702f" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities_24847a69-57f1-49a2-aab3-e12723fe0093" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_b0b6f118-4721-4f97-b7ac-6296425a8675" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities_24847a69-57f1-49a2-aab3-e12723fe0093" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedSafeguardingLiabilityPlatformOperatorCryptoAsset_26066a80-7efd-4697-932d-7b55d85a463e" xlink:href="bakkt-20240630.xsd#bakkt_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedSafeguardingLiabilityPlatformOperatorCryptoAsset"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_b0b6f118-4721-4f97-b7ac-6296425a8675" xlink:to="loc_bakkt_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedSafeguardingLiabilityPlatformOperatorCryptoAsset_26066a80-7efd-4697-932d-7b55d85a463e" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_eafa06f0-44b4-4a66-809e-670451741401" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_b0b6f118-4721-4f97-b7ac-6296425a8675" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_eafa06f0-44b4-4a66-809e-670451741401" xlink:type="arc" order="12"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.bakkt.com/role/GoodwillandIntangibleAssetsNetNarrativeDetails" xlink:type="simple" xlink:href="bakkt-20240630.xsd#GoodwillandIntangibleAssetsNetNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/GoodwillandIntangibleAssetsNetNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillLineItems_685f5c00-34cb-4a6b-a19b-64dcd7cac169" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_GoodwillLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfGoodwillTable_efa50150-d813-4b84-8414-914859f382fd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfGoodwillTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_GoodwillLineItems_685f5c00-34cb-4a6b-a19b-64dcd7cac169" xlink:to="loc_us-gaap_ScheduleOfGoodwillTable_efa50150-d813-4b84-8414-914859f382fd" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_224968b8-c0fa-4eb9-9170-bb33fb1e9fd8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGoodwillTable_efa50150-d813-4b84-8414-914859f382fd" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_224968b8-c0fa-4eb9-9170-bb33fb1e9fd8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_224968b8-c0fa-4eb9-9170-bb33fb1e9fd8_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_224968b8-c0fa-4eb9-9170-bb33fb1e9fd8" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_224968b8-c0fa-4eb9-9170-bb33fb1e9fd8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_5fc8b952-e711-4afe-9481-e2deb17395f1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_224968b8-c0fa-4eb9-9170-bb33fb1e9fd8" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_5fc8b952-e711-4afe-9481-e2deb17395f1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerRelationshipsMember_c12cad1a-2ec6-496a-aa17-34db1b952c21" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CustomerRelationshipsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_5fc8b952-e711-4afe-9481-e2deb17395f1" xlink:to="loc_us-gaap_CustomerRelationshipsMember_c12cad1a-2ec6-496a-aa17-34db1b952c21" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TechnologyBasedIntangibleAssetsMember_007957f8-90bd-40a5-8aeb-50bd44c9deb1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TechnologyBasedIntangibleAssetsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_5fc8b952-e711-4afe-9481-e2deb17395f1" xlink:to="loc_us-gaap_TechnologyBasedIntangibleAssetsMember_007957f8-90bd-40a5-8aeb-50bd44c9deb1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_21625e6f-c302-4915-ba15-1468054abd90" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGoodwillTable_efa50150-d813-4b84-8414-914859f382fd" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_21625e6f-c302-4915-ba15-1468054abd90" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_21625e6f-c302-4915-ba15-1468054abd90_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_21625e6f-c302-4915-ba15-1468054abd90" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_21625e6f-c302-4915-ba15-1468054abd90_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_512d7ba5-ce0c-4ca7-bb66-e88cacc47834" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_21625e6f-c302-4915-ba15-1468054abd90" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_512d7ba5-ce0c-4ca7-bb66-e88cacc47834" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TrademarksAndTradeNamesMember_69972bb1-b763-440b-b340-19d090fc8760" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TrademarksAndTradeNamesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_512d7ba5-ce0c-4ca7-bb66-e88cacc47834" xlink:to="loc_us-gaap_TrademarksAndTradeNamesMember_69972bb1-b763-440b-b340-19d090fc8760" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LicensingAgreementsMember_0c7b48a3-7732-4105-8f2b-01e37ae58ad6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LicensingAgreementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_512d7ba5-ce0c-4ca7-bb66-e88cacc47834" xlink:to="loc_us-gaap_LicensingAgreementsMember_0c7b48a3-7732-4105-8f2b-01e37ae58ad6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_b06950cd-23ee-4a5e-bef6-faf20b85828a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGoodwillTable_efa50150-d813-4b84-8414-914859f382fd" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_b06950cd-23ee-4a5e-bef6-faf20b85828a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_b06950cd-23ee-4a5e-bef6-faf20b85828a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_b06950cd-23ee-4a5e-bef6-faf20b85828a" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_b06950cd-23ee-4a5e-bef6-faf20b85828a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_a605475f-10fd-4396-bfa0-3a45fbc778c7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_b06950cd-23ee-4a5e-bef6-faf20b85828a" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_a605475f-10fd-4396-bfa0-3a45fbc778c7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_ApexCryptoLLCMember_ad312982-e690-42c9-9943-28d9aad35b9e" xlink:href="bakkt-20240630.xsd#bakkt_ApexCryptoLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_a605475f-10fd-4396-bfa0-3a45fbc778c7" xlink:to="loc_bakkt_ApexCryptoLLCMember_ad312982-e690-42c9-9943-28d9aad35b9e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerSalesChannelAxis_190a1fa9-f064-4e81-aa70-f87abc3fd821" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ContractWithCustomerSalesChannelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGoodwillTable_efa50150-d813-4b84-8414-914859f382fd" xlink:to="loc_us-gaap_ContractWithCustomerSalesChannelAxis_190a1fa9-f064-4e81-aa70-f87abc3fd821" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerSalesChannelDomain_190a1fa9-f064-4e81-aa70-f87abc3fd821_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ContractWithCustomerSalesChannelDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ContractWithCustomerSalesChannelAxis_190a1fa9-f064-4e81-aa70-f87abc3fd821" xlink:to="loc_us-gaap_ContractWithCustomerSalesChannelDomain_190a1fa9-f064-4e81-aa70-f87abc3fd821_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerSalesChannelDomain_e7aa68d4-1473-4335-a4e6-71ee5c8810c5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ContractWithCustomerSalesChannelDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ContractWithCustomerSalesChannelAxis_190a1fa9-f064-4e81-aa70-f87abc3fd821" xlink:to="loc_us-gaap_ContractWithCustomerSalesChannelDomain_e7aa68d4-1473-4335-a4e6-71ee5c8810c5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_SalesChannelLoyaltyRedemptionPlatformMember_e10c8c49-cddf-406b-87ac-a9e4b8e8b6d0" xlink:href="bakkt-20240630.xsd#bakkt_SalesChannelLoyaltyRedemptionPlatformMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ContractWithCustomerSalesChannelDomain_e7aa68d4-1473-4335-a4e6-71ee5c8810c5" xlink:to="loc_bakkt_SalesChannelLoyaltyRedemptionPlatformMember_e10c8c49-cddf-406b-87ac-a9e4b8e8b6d0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_SalesChannelAlternativePaymentPlatformMember_bbd2cac5-cac4-46c5-949b-bcddddd62650" xlink:href="bakkt-20240630.xsd#bakkt_SalesChannelAlternativePaymentPlatformMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ContractWithCustomerSalesChannelDomain_e7aa68d4-1473-4335-a4e6-71ee5c8810c5" xlink:to="loc_bakkt_SalesChannelAlternativePaymentPlatformMember_bbd2cac5-cac4-46c5-949b-bcddddd62650" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfIntangibleAssetsFinitelived_053939a4-1227-4270-82a1-74c9f9a23de2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ImpairmentOfIntangibleAssetsFinitelived"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems_685f5c00-34cb-4a6b-a19b-64dcd7cac169" xlink:to="loc_us-gaap_ImpairmentOfIntangibleAssetsFinitelived_053939a4-1227-4270-82a1-74c9f9a23de2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill_2f271a42-fd4f-499e-86a4-682af80edbca" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems_685f5c00-34cb-4a6b-a19b-64dcd7cac169" xlink:to="loc_us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill_2f271a42-fd4f-499e-86a4-682af80edbca" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillImpairmentLoss_a290ec25-c61a-4f73-972a-ecef8a19d18b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_GoodwillImpairmentLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems_685f5c00-34cb-4a6b-a19b-64dcd7cac169" xlink:to="loc_us-gaap_GoodwillImpairmentLoss_a290ec25-c61a-4f73-972a-ecef8a19d18b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_330b028b-34c7-42ea-8af2-ceae3a361a09" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AmortizationOfIntangibleAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems_685f5c00-34cb-4a6b-a19b-64dcd7cac169" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_330b028b-34c7-42ea-8af2-ceae3a361a09" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.bakkt.com/role/GoodwillandIntangibleAssetsNetScheduleofIntangibleAssetsDetails" xlink:type="simple" xlink:href="bakkt-20240630.xsd#GoodwillandIntangibleAssetsNetScheduleofIntangibleAssetsDetails"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/GoodwillandIntangibleAssetsNetScheduleofIntangibleAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems_1ecec8de-ce1e-49a6-a926-b60f1fb351c7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable_d1598113-00a0-4fbf-9cf1-a2e405a4a692" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems_1ecec8de-ce1e-49a6-a926-b60f1fb351c7" xlink:to="loc_us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable_d1598113-00a0-4fbf-9cf1-a2e405a4a692" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_1295b74a-a96c-46dd-9912-3218694da6e1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable_d1598113-00a0-4fbf-9cf1-a2e405a4a692" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_1295b74a-a96c-46dd-9912-3218694da6e1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_1295b74a-a96c-46dd-9912-3218694da6e1_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_1295b74a-a96c-46dd-9912-3218694da6e1" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_1295b74a-a96c-46dd-9912-3218694da6e1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_a2767736-c283-4c61-b612-a2bb0bcb9fff" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_1295b74a-a96c-46dd-9912-3218694da6e1" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_a2767736-c283-4c61-b612-a2bb0bcb9fff" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LicensingAgreementsMember_b704f9aa-d3d5-4bdb-8fd8-09617894dcaf" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LicensingAgreementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_a2767736-c283-4c61-b612-a2bb0bcb9fff" xlink:to="loc_us-gaap_LicensingAgreementsMember_b704f9aa-d3d5-4bdb-8fd8-09617894dcaf" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TrademarksAndTradeNamesMember_0ccecef5-d1d0-491f-a6ca-06964f52eaca" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TrademarksAndTradeNamesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_a2767736-c283-4c61-b612-a2bb0bcb9fff" xlink:to="loc_us-gaap_TrademarksAndTradeNamesMember_0ccecef5-d1d0-491f-a6ca-06964f52eaca" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_IndefiniteLivedIntangibleAssetsExcludingGoodwillGross_23d5bd74-0797-470b-9a4f-49ec3d9a63a8" xlink:href="bakkt-20240630.xsd#bakkt_IndefiniteLivedIntangibleAssetsExcludingGoodwillGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems_1ecec8de-ce1e-49a6-a926-b60f1fb351c7" xlink:to="loc_bakkt_IndefiniteLivedIntangibleAssetsExcludingGoodwillGross_23d5bd74-0797-470b-9a4f-49ec3d9a63a8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill_11edff57-a8a6-40d1-84a9-1c9fbc47337a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems_1ecec8de-ce1e-49a6-a926-b60f1fb351c7" xlink:to="loc_us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill_11edff57-a8a6-40d1-84a9-1c9fbc47337a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_d8b0647c-a38e-41ec-a8bc-5cb397a3e480" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems_1ecec8de-ce1e-49a6-a926-b60f1fb351c7" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_d8b0647c-a38e-41ec-a8bc-5cb397a3e480" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_4718e218-76b3-4ae9-afd0-578a87e02a22" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_33007a35-74ec-46da-b017-03e5aaa3f0c0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_4718e218-76b3-4ae9-afd0-578a87e02a22" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_33007a35-74ec-46da-b017-03e5aaa3f0c0" xlink:type="arc" order="2" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_1d4fa9fe-09a3-408b-9f75-ea72ec2be658" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_33007a35-74ec-46da-b017-03e5aaa3f0c0" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_1d4fa9fe-09a3-408b-9f75-ea72ec2be658" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_1d4fa9fe-09a3-408b-9f75-ea72ec2be658_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_1d4fa9fe-09a3-408b-9f75-ea72ec2be658" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_1d4fa9fe-09a3-408b-9f75-ea72ec2be658_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_4f1f4df6-9961-4e24-80a7-8aa8d048b416" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_1d4fa9fe-09a3-408b-9f75-ea72ec2be658" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_4f1f4df6-9961-4e24-80a7-8aa8d048b416" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TechnologyBasedIntangibleAssetsMember_392539bc-edf4-4e0c-8721-e1195ff7628e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TechnologyBasedIntangibleAssetsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_4f1f4df6-9961-4e24-80a7-8aa8d048b416" xlink:to="loc_us-gaap_TechnologyBasedIntangibleAssetsMember_392539bc-edf4-4e0c-8721-e1195ff7628e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerRelationshipsMember_96c50d32-2e32-4ff1-b943-c894f79d842e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CustomerRelationshipsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_4f1f4df6-9961-4e24-80a7-8aa8d048b416" xlink:to="loc_us-gaap_CustomerRelationshipsMember_96c50d32-2e32-4ff1-b943-c894f79d842e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_9501d275-f3e8-4cfb-a5d3-dc0d29da44ef" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_4718e218-76b3-4ae9-afd0-578a87e02a22" xlink:to="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_9501d275-f3e8-4cfb-a5d3-dc0d29da44ef" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_08cbca73-1d6d-4d42-a8a9-ed0a794d75e6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_4718e218-76b3-4ae9-afd0-578a87e02a22" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_08cbca73-1d6d-4d42-a8a9-ed0a794d75e6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_98c660ac-bee2-4c64-9668-afbe89e0fd4c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_4718e218-76b3-4ae9-afd0-578a87e02a22" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_98c660ac-bee2-4c64-9668-afbe89e0fd4c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfIntangibleAssetsFinitelived_02d7ead7-be30-4b55-9d40-e5a468187e24" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ImpairmentOfIntangibleAssetsFinitelived"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_4718e218-76b3-4ae9-afd0-578a87e02a22" xlink:to="loc_us-gaap_ImpairmentOfIntangibleAssetsFinitelived_02d7ead7-be30-4b55-9d40-e5a468187e24" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_7e0b486e-4418-48f6-9afe-c04242a29957" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_4718e218-76b3-4ae9-afd0-578a87e02a22" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_7e0b486e-4418-48f6-9afe-c04242a29957" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.bakkt.com/role/ConsolidatedBalanceSheetComponentsAccountsReceivableNetDetails" xlink:type="simple" xlink:href="bakkt-20240630.xsd#ConsolidatedBalanceSheetComponentsAccountsReceivableNetDetails"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/ConsolidatedBalanceSheetComponentsAccountsReceivableNetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_dd33d80e-5797-4b95-bd18-d5e7925f6a1f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsNotesAndLoansReceivableLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_cdf963b1-cb04-4b76-9708-b884b4833184" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_dd33d80e-5797-4b95-bd18-d5e7925f6a1f" xlink:to="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_cdf963b1-cb04-4b76-9708-b884b4833184" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_948ea3ae-2a5b-4f27-a858-47660ac1ef58" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_cdf963b1-cb04-4b76-9708-b884b4833184" xlink:to="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_948ea3ae-2a5b-4f27-a858-47660ac1ef58" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_948ea3ae-2a5b-4f27-a858-47660ac1ef58_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_948ea3ae-2a5b-4f27-a858-47660ac1ef58" xlink:to="loc_us-gaap_ReceivableTypeDomain_948ea3ae-2a5b-4f27-a858-47660ac1ef58_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_95ff9d09-c1d9-42b3-b225-ae6d23210762" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_948ea3ae-2a5b-4f27-a858-47660ac1ef58" xlink:to="loc_us-gaap_ReceivableTypeDomain_95ff9d09-c1d9-42b3-b225-ae6d23210762" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TradeAccountsReceivableMember_13daa165-8cac-4e7b-a05b-3d6c91412651" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TradeAccountsReceivableMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_95ff9d09-c1d9-42b3-b225-ae6d23210762" xlink:to="loc_us-gaap_TradeAccountsReceivableMember_13daa165-8cac-4e7b-a05b-3d6c91412651" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_DepositsAtBrokersOrDealersMember_8add1e69-1309-47ba-aea9-65daacbada93" xlink:href="bakkt-20240630.xsd#bakkt_DepositsAtBrokersOrDealersMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_95ff9d09-c1d9-42b3-b225-ae6d23210762" xlink:to="loc_bakkt_DepositsAtBrokersOrDealersMember_8add1e69-1309-47ba-aea9-65daacbada93" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_CryptoReceivableFromLiquidityProvidersMember_7c439e1e-3925-4169-b354-0f498e498df1" xlink:href="bakkt-20240630.xsd#bakkt_CryptoReceivableFromLiquidityProvidersMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_95ff9d09-c1d9-42b3-b225-ae6d23210762" xlink:to="loc_bakkt_CryptoReceivableFromLiquidityProvidersMember_7c439e1e-3925-4169-b354-0f498e498df1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_UnbilledReceivablesCurrentMember_fdc44d03-aa68-4329-aaf1-d18bc5e492c1" xlink:href="bakkt-20240630.xsd#bakkt_UnbilledReceivablesCurrentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_95ff9d09-c1d9-42b3-b225-ae6d23210762" xlink:to="loc_bakkt_UnbilledReceivablesCurrentMember_fdc44d03-aa68-4329-aaf1-d18bc5e492c1" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_OtherReceivablesCurrentMember_646aea7f-2b0b-47e3-bf53-44a26d5a76f9" xlink:href="bakkt-20240630.xsd#bakkt_OtherReceivablesCurrentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_95ff9d09-c1d9-42b3-b225-ae6d23210762" xlink:to="loc_bakkt_OtherReceivablesCurrentMember_646aea7f-2b0b-47e3-bf53-44a26d5a76f9" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableGrossCurrent_fdf8f174-9afb-4d91-8118-30ba95784c79" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsReceivableGrossCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_dd33d80e-5797-4b95-bd18-d5e7925f6a1f" xlink:to="loc_us-gaap_AccountsReceivableGrossCurrent_fdf8f174-9afb-4d91-8118-30ba95784c79" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_8e4a6dbc-5e11-4a41-aecf-bc4483ae3be4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_dd33d80e-5797-4b95-bd18-d5e7925f6a1f" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_8e4a6dbc-5e11-4a41-aecf-bc4483ae3be4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_4bf90f5b-bd93-43e2-b591-e1c20f5bdd37" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_dd33d80e-5797-4b95-bd18-d5e7925f6a1f" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_4bf90f5b-bd93-43e2-b591-e1c20f5bdd37" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.bakkt.com/role/ConsolidatedBalanceSheetComponentsPropertyEquipmentandSoftwareNetDetails" xlink:type="simple" xlink:href="bakkt-20240630.xsd#ConsolidatedBalanceSheetComponentsPropertyEquipmentandSoftwareNetDetails"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/ConsolidatedBalanceSheetComponentsPropertyEquipmentandSoftwareNetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_b07a52aa-a4fa-4b85-aa42-ceb97df0b8a0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_751854ec-bc57-4a80-a866-901f1d8dc887" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_b07a52aa-a4fa-4b85-aa42-ceb97df0b8a0" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_751854ec-bc57-4a80-a866-901f1d8dc887" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_ccd7ca3b-b2dc-4867-adda-e45e1be1e180" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_751854ec-bc57-4a80-a866-901f1d8dc887" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_ccd7ca3b-b2dc-4867-adda-e45e1be1e180" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ccd7ca3b-b2dc-4867-adda-e45e1be1e180_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_ccd7ca3b-b2dc-4867-adda-e45e1be1e180" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ccd7ca3b-b2dc-4867-adda-e45e1be1e180_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_0f6c4471-248e-445b-9d01-e7aec2ea217b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_ccd7ca3b-b2dc-4867-adda-e45e1be1e180" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_0f6c4471-248e-445b-9d01-e7aec2ea217b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SoftwareDevelopmentMember_2e8dc748-1291-491f-bb3a-bfeb7d0b0834" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SoftwareDevelopmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_0f6c4471-248e-445b-9d01-e7aec2ea217b" xlink:to="loc_us-gaap_SoftwareDevelopmentMember_2e8dc748-1291-491f-bb3a-bfeb7d0b0834" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComputerEquipmentMember_4c33a090-1e28-4a0f-ae1b-41b268eca2d8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ComputerEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_0f6c4471-248e-445b-9d01-e7aec2ea217b" xlink:to="loc_us-gaap_ComputerEquipmentMember_4c33a090-1e28-4a0f-ae1b-41b268eca2d8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseholdImprovementsMember_eb240ce5-4a6a-4522-ac1c-660374d9c8d8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LeaseholdImprovementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_0f6c4471-248e-445b-9d01-e7aec2ea217b" xlink:to="loc_us-gaap_LeaseholdImprovementsMember_eb240ce5-4a6a-4522-ac1c-660374d9c8d8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_2a95b87b-fbd1-44fa-b84e-038616828f9d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_b07a52aa-a4fa-4b85-aa42-ceb97df0b8a0" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_2a95b87b-fbd1-44fa-b84e-038616828f9d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_3dab819e-4ae1-46dc-be62-a41f0cd9d413" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_b07a52aa-a4fa-4b85-aa42-ceb97df0b8a0" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_3dab819e-4ae1-46dc-be62-a41f0cd9d413" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_c63e710e-528c-4bc4-a57f-5db4e902431b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_b07a52aa-a4fa-4b85-aa42-ceb97df0b8a0" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_c63e710e-528c-4bc4-a57f-5db4e902431b" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.bakkt.com/role/ConsolidatedBalanceSheetComponentsOtherCurrentLiabilitiesDetails" xlink:type="simple" xlink:href="bakkt-20240630.xsd#ConsolidatedBalanceSheetComponentsOtherCurrentLiabilitiesDetails"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/ConsolidatedBalanceSheetComponentsOtherCurrentLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems_7bda999c-337e-4bb6-87bc-0c6d12958ef4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_88d7ea80-73a7-4fe6-9483-98cb9bf89e29" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_7bda999c-337e-4bb6-87bc-0c6d12958ef4" xlink:to="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_88d7ea80-73a7-4fe6-9483-98cb9bf89e29" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_79055649-b635-43f0-b747-6218210cf16a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_88d7ea80-73a7-4fe6-9483-98cb9bf89e29" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_79055649-b635-43f0-b747-6218210cf16a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_79055649-b635-43f0-b747-6218210cf16a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_79055649-b635-43f0-b747-6218210cf16a" xlink:to="loc_us-gaap_RelatedPartyDomain_79055649-b635-43f0-b747-6218210cf16a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_e5c5a62a-dc19-4637-a3be-0a054a4d447e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_79055649-b635-43f0-b747-6218210cf16a" xlink:to="loc_us-gaap_RelatedPartyDomain_e5c5a62a-dc19-4637-a3be-0a054a4d447e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonrelatedPartyMember_fcf9795e-33c7-4dca-b2c8-016925c885f7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NonrelatedPartyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_e5c5a62a-dc19-4637-a3be-0a054a4d447e" xlink:to="loc_us-gaap_NonrelatedPartyMember_fcf9795e-33c7-4dca-b2c8-016925c885f7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_d296aeed-e6dd-4931-8319-9677f7b34de8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_7bda999c-337e-4bb6-87bc-0c6d12958ef4" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_d296aeed-e6dd-4931-8319-9677f7b34de8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherSundryLiabilitiesCurrent_fd87da73-37b9-4b3b-ba71-8d37947094ed" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherSundryLiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_7bda999c-337e-4bb6-87bc-0c6d12958ef4" xlink:to="loc_us-gaap_OtherSundryLiabilitiesCurrent_fd87da73-37b9-4b3b-ba71-8d37947094ed" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_67622380-06e4-4f80-aaab-4259e3dd1ae4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherLiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_7bda999c-337e-4bb6-87bc-0c6d12958ef4" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent_67622380-06e4-4f80-aaab-4259e3dd1ae4" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.bakkt.com/role/TaxReceivableAgreementDetails" xlink:type="simple" xlink:href="bakkt-20240630.xsd#TaxReceivableAgreementDetails"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/TaxReceivableAgreementDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConversionOfStockLineItems_07e5f9b4-52ed-4f51-b44e-af0aa1525eef" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConversionOfStockLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConversionOfStockTable_bef5173b-13e9-438c-bf08-a0915708df33" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConversionOfStockTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ConversionOfStockLineItems_07e5f9b4-52ed-4f51-b44e-af0aa1525eef" xlink:to="loc_us-gaap_ConversionOfStockTable_bef5173b-13e9-438c-bf08-a0915708df33" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_95976000-43e2-4c6b-9d4a-47e732e6281f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConversionOfStockTable_bef5173b-13e9-438c-bf08-a0915708df33" xlink:to="loc_us-gaap_StatementClassOfStockAxis_95976000-43e2-4c6b-9d4a-47e732e6281f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_95976000-43e2-4c6b-9d4a-47e732e6281f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_95976000-43e2-4c6b-9d4a-47e732e6281f" xlink:to="loc_us-gaap_ClassOfStockDomain_95976000-43e2-4c6b-9d4a-47e732e6281f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_7f7a8ac8-38cb-48df-b41f-50037e2ec826" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_95976000-43e2-4c6b-9d4a-47e732e6281f" xlink:to="loc_us-gaap_ClassOfStockDomain_7f7a8ac8-38cb-48df-b41f-50037e2ec826" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_CommonUnitsOpcoMember_6632b252-79e4-440c-abb6-fb63f44c753f" xlink:href="bakkt-20240630.xsd#bakkt_CommonUnitsOpcoMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_7f7a8ac8-38cb-48df-b41f-50037e2ec826" xlink:to="loc_bakkt_CommonUnitsOpcoMember_6632b252-79e4-440c-abb6-fb63f44c753f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_2fe41673-1740-4d1a-b334-06dd1cf8994a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_7f7a8ac8-38cb-48df-b41f-50037e2ec826" xlink:to="loc_us-gaap_CommonClassAMember_2fe41673-1740-4d1a-b334-06dd1cf8994a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_TaxReceivableAgreementPercentOfIncomeTaxBenefitsPayableToExchangingStockholders_3380c65c-5278-4f40-b28c-d22f6e9046eb" xlink:href="bakkt-20240630.xsd#bakkt_TaxReceivableAgreementPercentOfIncomeTaxBenefitsPayableToExchangingStockholders"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConversionOfStockLineItems_07e5f9b4-52ed-4f51-b44e-af0aa1525eef" xlink:to="loc_bakkt_TaxReceivableAgreementPercentOfIncomeTaxBenefitsPayableToExchangingStockholders_3380c65c-5278-4f40-b28c-d22f6e9046eb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_5fd91ae3-a771-4455-8109-c038039826e9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConversionOfStockLineItems_07e5f9b4-52ed-4f51-b44e-af0aa1525eef" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_5fd91ae3-a771-4455-8109-c038039826e9" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.bakkt.com/role/RelatedPartiesDetails" xlink:type="simple" xlink:href="bakkt-20240630.xsd#RelatedPartiesDetails"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/RelatedPartiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems_9bed4333-16d2-41d3-b553-1d1846af0022" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_cb7366a5-5eea-459c-9942-69f64a5f8b55" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_9bed4333-16d2-41d3-b553-1d1846af0022" xlink:to="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_cb7366a5-5eea-459c-9942-69f64a5f8b55" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_a80a3cf2-88a7-4fc8-80cb-1e6915511e40" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_CounterpartyNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_cb7366a5-5eea-459c-9942-69f64a5f8b55" xlink:to="loc_srt_CounterpartyNameAxis_a80a3cf2-88a7-4fc8-80cb-1e6915511e40" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_a80a3cf2-88a7-4fc8-80cb-1e6915511e40_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CounterpartyNameAxis_a80a3cf2-88a7-4fc8-80cb-1e6915511e40" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_a80a3cf2-88a7-4fc8-80cb-1e6915511e40_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_0106da00-d4c2-41ab-8710-7d72efe263e4" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CounterpartyNameAxis_a80a3cf2-88a7-4fc8-80cb-1e6915511e40" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_0106da00-d4c2-41ab-8710-7d72efe263e4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_ICEMember_249e34e8-369e-4a4b-8248-25480f4f576f" xlink:href="bakkt-20240630.xsd#bakkt_ICEMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_0106da00-d4c2-41ab-8710-7d72efe263e4" xlink:to="loc_bakkt_ICEMember_249e34e8-369e-4a4b-8248-25480f4f576f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_IFUSMember_57fee907-573b-4ea5-8584-1f261625a62c" xlink:href="bakkt-20240630.xsd#bakkt_IFUSMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_0106da00-d4c2-41ab-8710-7d72efe263e4" xlink:to="loc_bakkt_IFUSMember_57fee907-573b-4ea5-8584-1f261625a62c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_ApexCryptoLLCMember_c1a50ea3-f315-4cd7-ae0e-cf617dcdb954" xlink:href="bakkt-20240630.xsd#bakkt_ApexCryptoLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_0106da00-d4c2-41ab-8710-7d72efe263e4" xlink:to="loc_bakkt_ApexCryptoLLCMember_c1a50ea3-f315-4cd7-ae0e-cf617dcdb954" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAxis_fa3e750c-d9ae-4ff3-99a9-88ea3d6d50c5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_cb7366a5-5eea-459c-9942-69f64a5f8b55" xlink:to="loc_us-gaap_RelatedPartyTransactionAxis_fa3e750c-d9ae-4ff3-99a9-88ea3d6d50c5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_fa3e750c-d9ae-4ff3-99a9-88ea3d6d50c5_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_fa3e750c-d9ae-4ff3-99a9-88ea3d6d50c5" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_fa3e750c-d9ae-4ff3-99a9-88ea3d6d50c5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_9b48d198-3589-4603-9edc-0a733fbb5da0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_fa3e750c-d9ae-4ff3-99a9-88ea3d6d50c5" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_9b48d198-3589-4603-9edc-0a733fbb5da0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_TransitionServicesAgreementMember_a5873f0c-5af5-40d6-a1bc-ff4f3e8daecd" xlink:href="bakkt-20240630.xsd#bakkt_TransitionServicesAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_9b48d198-3589-4603-9edc-0a733fbb5da0" xlink:to="loc_bakkt_TransitionServicesAgreementMember_a5873f0c-5af5-40d6-a1bc-ff4f3e8daecd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_TripartyAgreementMember_a92ea2f4-96a8-4da8-8d9d-324a9297f91e" xlink:href="bakkt-20240630.xsd#bakkt_TripartyAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_9b48d198-3589-4603-9edc-0a733fbb5da0" xlink:to="loc_bakkt_TripartyAgreementMember_a92ea2f4-96a8-4da8-8d9d-324a9297f91e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_1aa0439d-ad74-4492-9703-359c5c4ac838" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_cb7366a5-5eea-459c-9942-69f64a5f8b55" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_1aa0439d-ad74-4492-9703-359c5c4ac838" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_1aa0439d-ad74-4492-9703-359c5c4ac838_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_1aa0439d-ad74-4492-9703-359c5c4ac838" xlink:to="loc_us-gaap_RelatedPartyDomain_1aa0439d-ad74-4492-9703-359c5c4ac838_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_fa57c86c-4fee-4541-bc10-be5dcc9bca11" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_1aa0439d-ad74-4492-9703-359c5c4ac838" xlink:to="loc_us-gaap_RelatedPartyDomain_fa57c86c-4fee-4541-bc10-be5dcc9bca11" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyMember_c39c5a88-2969-40bb-a156-59e3f8abfd8e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_fa57c86c-4fee-4541-bc10-be5dcc9bca11" xlink:to="loc_us-gaap_RelatedPartyMember_c39c5a88-2969-40bb-a156-59e3f8abfd8e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostsAndExpensesRelatedParty_c088d86b-ba68-4fa1-a98c-bb8b8529335f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CostsAndExpensesRelatedParty"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_9bed4333-16d2-41d3-b553-1d1846af0022" xlink:to="loc_us-gaap_CostsAndExpensesRelatedParty_c088d86b-ba68-4fa1-a98c-bb8b8529335f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_48128bcf-1ab6-474d-8f7d-a73be33b254c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherLiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_9bed4333-16d2-41d3-b553-1d1846af0022" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent_48128bcf-1ab6-474d-8f7d-a73be33b254c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_3e4eb4f6-0b0d-42dc-bf82-d2fb24a6b869" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_9bed4333-16d2-41d3-b553-1d1846af0022" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_3e4eb4f6-0b0d-42dc-bf82-d2fb24a6b869" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_ddcfa87c-116a-44ab-98fa-6de0cdc20e34" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_9bed4333-16d2-41d3-b553-1d1846af0022" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_ddcfa87c-116a-44ab-98fa-6de0cdc20e34" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.bakkt.com/role/WarrantsDetails" xlink:type="simple" xlink:href="bakkt-20240630.xsd#WarrantsDetails"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/WarrantsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightLineItems_d733f461-6a58-4edf-9ec2-b8aef729889c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightTable_9d2687f3-6c97-4749-9971-6b3ab1d6cdfb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_d733f461-6a58-4edf-9ec2-b8aef729889c" xlink:to="loc_us-gaap_ClassOfWarrantOrRightTable_9d2687f3-6c97-4749-9971-6b3ab1d6cdfb" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_c49d801b-1b80-4888-8146-9fba9e61f231" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfWarrantOrRightTable_9d2687f3-6c97-4749-9971-6b3ab1d6cdfb" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_c49d801b-1b80-4888-8146-9fba9e61f231" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_c49d801b-1b80-4888-8146-9fba9e61f231_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_c49d801b-1b80-4888-8146-9fba9e61f231" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_c49d801b-1b80-4888-8146-9fba9e61f231_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_f20e2359-3915-47de-92f6-d86e25fdeda4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_c49d801b-1b80-4888-8146-9fba9e61f231" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_f20e2359-3915-47de-92f6-d86e25fdeda4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_PublicWarrantsMember_d7c789bf-e2f2-4e6f-8aba-4423f50f812c" xlink:href="bakkt-20240630.xsd#bakkt_PublicWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_f20e2359-3915-47de-92f6-d86e25fdeda4" xlink:to="loc_bakkt_PublicWarrantsMember_d7c789bf-e2f2-4e6f-8aba-4423f50f812c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantMember_ee32bd90-a706-493b-8552-4f547f221680" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_WarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_f20e2359-3915-47de-92f6-d86e25fdeda4" xlink:to="loc_us-gaap_WarrantMember_ee32bd90-a706-493b-8552-4f547f221680" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_PreFundedWarrantsMember_c97fa903-5554-4bac-b5bb-d7975464b049" xlink:href="bakkt-20240630.xsd#bakkt_PreFundedWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_f20e2359-3915-47de-92f6-d86e25fdeda4" xlink:to="loc_bakkt_PreFundedWarrantsMember_c97fa903-5554-4bac-b5bb-d7975464b049" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_Class1AndClass2WarrantsMember_2d40f781-662d-4be9-8e56-b51a127c74fa" xlink:href="bakkt-20240630.xsd#bakkt_Class1AndClass2WarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_f20e2359-3915-47de-92f6-d86e25fdeda4" xlink:to="loc_bakkt_Class1AndClass2WarrantsMember_2d40f781-662d-4be9-8e56-b51a127c74fa" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_Class1WarrantsMember_45e3bb32-c2e1-40e5-bf71-8651d2cb2555" xlink:href="bakkt-20240630.xsd#bakkt_Class1WarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bakkt_Class1AndClass2WarrantsMember_2d40f781-662d-4be9-8e56-b51a127c74fa" xlink:to="loc_bakkt_Class1WarrantsMember_45e3bb32-c2e1-40e5-bf71-8651d2cb2555" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_Class2WarrantsMember_8832655f-24d6-4b75-b8b9-a2fee83fbe3c" xlink:href="bakkt-20240630.xsd#bakkt_Class2WarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bakkt_Class1AndClass2WarrantsMember_2d40f781-662d-4be9-8e56-b51a127c74fa" xlink:to="loc_bakkt_Class2WarrantsMember_8832655f-24d6-4b75-b8b9-a2fee83fbe3c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_9a79f26a-3c07-4661-b0a1-ff59becd1ea3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfWarrantOrRightTable_9d2687f3-6c97-4749-9971-6b3ab1d6cdfb" xlink:to="loc_us-gaap_StatementClassOfStockAxis_9a79f26a-3c07-4661-b0a1-ff59becd1ea3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_9a79f26a-3c07-4661-b0a1-ff59becd1ea3_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_9a79f26a-3c07-4661-b0a1-ff59becd1ea3" xlink:to="loc_us-gaap_ClassOfStockDomain_9a79f26a-3c07-4661-b0a1-ff59becd1ea3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_5bf6d368-bc96-406c-87bb-64de51577957" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_9a79f26a-3c07-4661-b0a1-ff59becd1ea3" xlink:to="loc_us-gaap_ClassOfStockDomain_5bf6d368-bc96-406c-87bb-64de51577957" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_56e40d4c-bd3a-45e0-a8f4-1889962fc9fb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_5bf6d368-bc96-406c-87bb-64de51577957" xlink:to="loc_us-gaap_CommonClassAMember_56e40d4c-bd3a-45e0-a8f4-1889962fc9fb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis_f49897cf-8d42-4bbe-ae80-3b728690e3e4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsidiarySaleOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfWarrantOrRightTable_9d2687f3-6c97-4749-9971-6b3ab1d6cdfb" xlink:to="loc_us-gaap_SubsidiarySaleOfStockAxis_f49897cf-8d42-4bbe-ae80-3b728690e3e4" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_f49897cf-8d42-4bbe-ae80-3b728690e3e4_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_f49897cf-8d42-4bbe-ae80-3b728690e3e4" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_f49897cf-8d42-4bbe-ae80-3b728690e3e4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_68698224-cb4d-4c1c-a1c7-c9ff52e0c2c9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_f49897cf-8d42-4bbe-ae80-3b728690e3e4" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_68698224-cb4d-4c1c-a1c7-c9ff52e0c2c9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_ThirdPartyOfferingMember_b214ab52-d4be-40bc-bc27-285d94dc8acb" xlink:href="bakkt-20240630.xsd#bakkt_ThirdPartyOfferingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_68698224-cb4d-4c1c-a1c7-c9ff52e0c2c9" xlink:to="loc_bakkt_ThirdPartyOfferingMember_b214ab52-d4be-40bc-bc27-285d94dc8acb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_ICEOfferingMember_14e5c3d0-d83d-4bae-843a-26e4e276a9b0" xlink:href="bakkt-20240630.xsd#bakkt_ICEOfferingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_68698224-cb4d-4c1c-a1c7-c9ff52e0c2c9" xlink:to="loc_bakkt_ICEOfferingMember_14e5c3d0-d83d-4bae-843a-26e4e276a9b0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightOutstanding_3cfc1ec6-43f1-49c8-8ec9-e8dcb0698e54" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_d733f461-6a58-4edf-9ec2-b8aef729889c" xlink:to="loc_us-gaap_ClassOfWarrantOrRightOutstanding_3cfc1ec6-43f1-49c8-8ec9-e8dcb0698e54" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight_20556324-41cb-4afe-ba5f-1de0260f783f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_d733f461-6a58-4edf-9ec2-b8aef729889c" xlink:to="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight_20556324-41cb-4afe-ba5f-1de0260f783f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_15d368fa-1974-42bb-9d5c-34dadda4761d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_d733f461-6a58-4edf-9ec2-b8aef729889c" xlink:to="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_15d368fa-1974-42bb-9d5c-34dadda4761d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromWarrantExercises_6df732bb-5ef1-4e60-8ec4-b9a9442a1d22" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromWarrantExercises"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_d733f461-6a58-4edf-9ec2-b8aef729889c" xlink:to="loc_us-gaap_ProceedsFromWarrantExercises_6df732bb-5ef1-4e60-8ec4-b9a9442a1d22" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAdjustmentOfWarrants_583ae7b0-6c0e-433f-a88b-93c2238e3ef1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAdjustmentOfWarrants"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_d733f461-6a58-4edf-9ec2-b8aef729889c" xlink:to="loc_us-gaap_FairValueAdjustmentOfWarrants_583ae7b0-6c0e-433f-a88b-93c2238e3ef1" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_WarrantLiability_5df5c0fc-32ec-4308-8770-d8a269064f06" xlink:href="bakkt-20240630.xsd#bakkt_WarrantLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_d733f461-6a58-4edf-9ec2-b8aef729889c" xlink:to="loc_bakkt_WarrantLiability_5df5c0fc-32ec-4308-8770-d8a269064f06" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_b3bc91c0-501c-4019-8a16-de437eeff148" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_d733f461-6a58-4edf-9ec2-b8aef729889c" xlink:to="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_b3bc91c0-501c-4019-8a16-de437eeff148" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_79304410-0cb8-446e-a12b-e6f2d8363b30" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_d733f461-6a58-4edf-9ec2-b8aef729889c" xlink:to="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_79304410-0cb8-446e-a12b-e6f2d8363b30" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_ClassOfWarrantOrRightThresholdPeriodAfterClosingForExerciseOfWarrants_905b0faf-3a35-47ea-b3f9-eefd948e2fb9" xlink:href="bakkt-20240630.xsd#bakkt_ClassOfWarrantOrRightThresholdPeriodAfterClosingForExerciseOfWarrants"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_d733f461-6a58-4edf-9ec2-b8aef729889c" xlink:to="loc_bakkt_ClassOfWarrantOrRightThresholdPeriodAfterClosingForExerciseOfWarrants_905b0faf-3a35-47ea-b3f9-eefd948e2fb9" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_ClassOfWarrantOrRightTerm_fe67097e-fda3-4897-8d45-0bf5ffe6517d" xlink:href="bakkt-20240630.xsd#bakkt_ClassOfWarrantOrRightTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_d733f461-6a58-4edf-9ec2-b8aef729889c" xlink:to="loc_bakkt_ClassOfWarrantOrRightTerm_fe67097e-fda3-4897-8d45-0bf5ffe6517d" xlink:type="arc" order="9"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.bakkt.com/role/StockholdersEquityNarrativeDetails" xlink:type="simple" xlink:href="bakkt-20240630.xsd#StockholdersEquityNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/StockholdersEquityNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockLineItems_36305103-5eae-4014-ad42-a99e03a67c3f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_f052ab72-38b8-484f-a517-59b7f6428cfd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfStockByClassTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfStockLineItems_36305103-5eae-4014-ad42-a99e03a67c3f" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_f052ab72-38b8-484f-a517-59b7f6428cfd" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis_2fa890fd-4cbf-4b75-a25b-bf9ce9415df4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsidiarySaleOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_f052ab72-38b8-484f-a517-59b7f6428cfd" xlink:to="loc_us-gaap_SubsidiarySaleOfStockAxis_2fa890fd-4cbf-4b75-a25b-bf9ce9415df4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_2fa890fd-4cbf-4b75-a25b-bf9ce9415df4_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_2fa890fd-4cbf-4b75-a25b-bf9ce9415df4" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_2fa890fd-4cbf-4b75-a25b-bf9ce9415df4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_45d50890-fe10-4556-9426-338404332103" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_2fa890fd-4cbf-4b75-a25b-bf9ce9415df4" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_45d50890-fe10-4556-9426-338404332103" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_ThirdPartyOfferingMember_06e7c239-beff-4098-84e7-fa2d3d2607d9" xlink:href="bakkt-20240630.xsd#bakkt_ThirdPartyOfferingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_45d50890-fe10-4556-9426-338404332103" xlink:to="loc_bakkt_ThirdPartyOfferingMember_06e7c239-beff-4098-84e7-fa2d3d2607d9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_ICEOfferingMember_ff8ab341-be0f-4ff5-84fb-35764d9bb753" xlink:href="bakkt-20240630.xsd#bakkt_ICEOfferingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_45d50890-fe10-4556-9426-338404332103" xlink:to="loc_bakkt_ICEOfferingMember_ff8ab341-be0f-4ff5-84fb-35764d9bb753" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_c6c75d17-26c8-46af-8d5c-f6f8cc89ed7a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_f052ab72-38b8-484f-a517-59b7f6428cfd" xlink:to="loc_us-gaap_StatementClassOfStockAxis_c6c75d17-26c8-46af-8d5c-f6f8cc89ed7a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_c6c75d17-26c8-46af-8d5c-f6f8cc89ed7a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_c6c75d17-26c8-46af-8d5c-f6f8cc89ed7a" xlink:to="loc_us-gaap_ClassOfStockDomain_c6c75d17-26c8-46af-8d5c-f6f8cc89ed7a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_2b7b4e04-14d4-46fd-a18c-32d5f3bc7df0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_c6c75d17-26c8-46af-8d5c-f6f8cc89ed7a" xlink:to="loc_us-gaap_ClassOfStockDomain_2b7b4e04-14d4-46fd-a18c-32d5f3bc7df0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_1591892c-d1e3-4507-827e-6a4a624890d9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_2b7b4e04-14d4-46fd-a18c-32d5f3bc7df0" xlink:to="loc_us-gaap_CommonClassAMember_1591892c-d1e3-4507-827e-6a4a624890d9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_CommonClassVMember_62a4c908-72e2-4299-973e-435b83091dc9" xlink:href="bakkt-20240630.xsd#bakkt_CommonClassVMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_2b7b4e04-14d4-46fd-a18c-32d5f3bc7df0" xlink:to="loc_bakkt_CommonClassVMember_62a4c908-72e2-4299-973e-435b83091dc9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_PairedInterestsMember_6e5c65dc-13ec-4f23-8fd0-9a8520997aa6" xlink:href="bakkt-20240630.xsd#bakkt_PairedInterestsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_2b7b4e04-14d4-46fd-a18c-32d5f3bc7df0" xlink:to="loc_bakkt_PairedInterestsMember_6e5c65dc-13ec-4f23-8fd0-9a8520997aa6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_bad19ade-e07c-49c5-803e-2c879e9de33e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_f052ab72-38b8-484f-a517-59b7f6428cfd" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_bad19ade-e07c-49c5-803e-2c879e9de33e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_bad19ade-e07c-49c5-803e-2c879e9de33e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_bad19ade-e07c-49c5-803e-2c879e9de33e" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_bad19ade-e07c-49c5-803e-2c879e9de33e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_1fc3f2e8-a8f1-44be-9eb3-5f96e2fdabda" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_bad19ade-e07c-49c5-803e-2c879e9de33e" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_1fc3f2e8-a8f1-44be-9eb3-5f96e2fdabda" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_OpcoMember_c3bd88f2-d481-48b1-b5d1-645256b4ef9a" xlink:href="bakkt-20240630.xsd#bakkt_OpcoMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_1fc3f2e8-a8f1-44be-9eb3-5f96e2fdabda" xlink:to="loc_bakkt_OpcoMember_c3bd88f2-d481-48b1-b5d1-645256b4ef9a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConversionOfStockByUniqueDescriptionAxis_7dd6bbd7-63b3-430f-832f-9d467b84991f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConversionOfStockByUniqueDescriptionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_f052ab72-38b8-484f-a517-59b7f6428cfd" xlink:to="loc_us-gaap_ConversionOfStockByUniqueDescriptionAxis_7dd6bbd7-63b3-430f-832f-9d467b84991f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConversionOfStockNameDomain_7dd6bbd7-63b3-430f-832f-9d467b84991f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConversionOfStockNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConversionOfStockByUniqueDescriptionAxis_7dd6bbd7-63b3-430f-832f-9d467b84991f" xlink:to="loc_us-gaap_ConversionOfStockNameDomain_7dd6bbd7-63b3-430f-832f-9d467b84991f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConversionOfStockNameDomain_50a03992-ea21-4d80-93f6-da9352048633" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConversionOfStockNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConversionOfStockByUniqueDescriptionAxis_7dd6bbd7-63b3-430f-832f-9d467b84991f" xlink:to="loc_us-gaap_ConversionOfStockNameDomain_50a03992-ea21-4d80-93f6-da9352048633" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_ConversionOfPairedInterestsIntoClassACommonStockMember_73fe36a8-65eb-4e7f-8127-1ff72218bab4" xlink:href="bakkt-20240630.xsd#bakkt_ConversionOfPairedInterestsIntoClassACommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConversionOfStockNameDomain_50a03992-ea21-4d80-93f6-da9352048633" xlink:to="loc_bakkt_ConversionOfPairedInterestsIntoClassACommonStockMember_73fe36a8-65eb-4e7f-8127-1ff72218bab4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_66401b0b-0ef0-4f28-b580-3b739d2ba9de" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_f052ab72-38b8-484f-a517-59b7f6428cfd" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_66401b0b-0ef0-4f28-b580-3b739d2ba9de" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_66401b0b-0ef0-4f28-b580-3b739d2ba9de_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_66401b0b-0ef0-4f28-b580-3b739d2ba9de" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_66401b0b-0ef0-4f28-b580-3b739d2ba9de_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_15485d90-08d1-478e-86cc-19d47756b915" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_66401b0b-0ef0-4f28-b580-3b739d2ba9de" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_15485d90-08d1-478e-86cc-19d47756b915" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_WarrantClassCMember_9016ac29-2429-432c-ba8f-d4da1f6a8b10" xlink:href="bakkt-20240630.xsd#bakkt_WarrantClassCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_15485d90-08d1-478e-86cc-19d47756b915" xlink:to="loc_bakkt_WarrantClassCMember_9016ac29-2429-432c-ba8f-d4da1f6a8b10" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_c60645cb-f4a8-4d77-bdab-a57eca565714" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_f052ab72-38b8-484f-a517-59b7f6428cfd" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_c60645cb-f4a8-4d77-bdab-a57eca565714" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_c60645cb-f4a8-4d77-bdab-a57eca565714_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_c60645cb-f4a8-4d77-bdab-a57eca565714" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_c60645cb-f4a8-4d77-bdab-a57eca565714_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_be682252-1344-44c0-8ef9-db0405b832b2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_c60645cb-f4a8-4d77-bdab-a57eca565714" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_be682252-1344-44c0-8ef9-db0405b832b2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_fc5ab170-8872-4321-9fcf-6c6564bcae88" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_be682252-1344-44c0-8ef9-db0405b832b2" xlink:to="loc_us-gaap_SubsequentEventMember_fc5ab170-8872-4321-9fcf-6c6564bcae88" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_f8433042-7326-4ef9-84c2-459e383fb133" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PreferredStockSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_36305103-5eae-4014-ad42-a99e03a67c3f" xlink:to="loc_us-gaap_PreferredStockSharesAuthorized_f8433042-7326-4ef9-84c2-459e383fb133" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockParOrStatedValuePerShare_3c76c082-e478-4902-8f24-412dce06dd1c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PreferredStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_36305103-5eae-4014-ad42-a99e03a67c3f" xlink:to="loc_us-gaap_PreferredStockParOrStatedValuePerShare_3c76c082-e478-4902-8f24-412dce06dd1c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesIssued_f1a0baa7-f7aa-4320-8498-f186535fd4f6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PreferredStockSharesIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_36305103-5eae-4014-ad42-a99e03a67c3f" xlink:to="loc_us-gaap_PreferredStockSharesIssued_f1a0baa7-f7aa-4320-8498-f186535fd4f6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_536db8a4-aee6-4295-9ace-89b766ea0e78" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_36305103-5eae-4014-ad42-a99e03a67c3f" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_536db8a4-aee6-4295-9ace-89b766ea0e78" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_28827d62-8c9c-4884-b616-9ab50b77c226" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_36305103-5eae-4014-ad42-a99e03a67c3f" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_28827d62-8c9c-4884-b616-9ab50b77c226" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_ea0f7a5d-7b26-4b25-8be3-f9e3f2976b73" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_36305103-5eae-4014-ad42-a99e03a67c3f" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_ea0f7a5d-7b26-4b25-8be3-f9e3f2976b73" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesIssued_12556c69-f346-4164-b5d9-f3550c8317fe" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockSharesIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_36305103-5eae-4014-ad42-a99e03a67c3f" xlink:to="loc_us-gaap_CommonStockSharesIssued_12556c69-f346-4164-b5d9-f3550c8317fe" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Dividends_b47e28c6-b16d-4380-b94e-52bc9934cf8e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Dividends"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_36305103-5eae-4014-ad42-a99e03a67c3f" xlink:to="loc_us-gaap_Dividends_b47e28c6-b16d-4380-b94e-52bc9934cf8e" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_8a32563b-0a06-445f-9759-ffe6dd26861b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_36305103-5eae-4014-ad42-a99e03a67c3f" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_8a32563b-0a06-445f-9759-ffe6dd26861b" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_NoncontrollingInterestOwnershipPercentageByNoncontrollingOwnersWeightedAverage_8c35ce8a-fcb6-4b36-b73b-9cdd71f40977" xlink:href="bakkt-20240630.xsd#bakkt_NoncontrollingInterestOwnershipPercentageByNoncontrollingOwnersWeightedAverage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_36305103-5eae-4014-ad42-a99e03a67c3f" xlink:to="loc_bakkt_NoncontrollingInterestOwnershipPercentageByNoncontrollingOwnersWeightedAverage_8c35ce8a-fcb6-4b36-b73b-9cdd71f40977" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_1c9a90de-170f-4eb1-8ea8-1c4bd6d06209" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_36305103-5eae-4014-ad42-a99e03a67c3f" xlink:to="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_1c9a90de-170f-4eb1-8ea8-1c4bd6d06209" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_539a38a3-d253-4466-8d2c-03e34290d8a4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_36305103-5eae-4014-ad42-a99e03a67c3f" xlink:to="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_539a38a3-d253-4466-8d2c-03e34290d8a4" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_ClassOfWarrantOrRightVested_c26073bb-1500-436a-819d-32d633c20854" xlink:href="bakkt-20240630.xsd#bakkt_ClassOfWarrantOrRightVested"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_36305103-5eae-4014-ad42-a99e03a67c3f" xlink:to="loc_bakkt_ClassOfWarrantOrRightVested_c26073bb-1500-436a-819d-32d633c20854" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_ClassOfWarrantOrRightUnvested_5fcbe890-bf9f-4a18-ae86-7e11c9748ee7" xlink:href="bakkt-20240630.xsd#bakkt_ClassOfWarrantOrRightUnvested"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_36305103-5eae-4014-ad42-a99e03a67c3f" xlink:to="loc_bakkt_ClassOfWarrantOrRightUnvested_5fcbe890-bf9f-4a18-ae86-7e11c9748ee7" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherSellingGeneralAndAdministrativeExpense_a4a13e47-c5ff-4b3f-982f-6b1e01a1b653" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherSellingGeneralAndAdministrativeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_36305103-5eae-4014-ad42-a99e03a67c3f" xlink:to="loc_us-gaap_OtherSellingGeneralAndAdministrativeExpense_a4a13e47-c5ff-4b3f-982f-6b1e01a1b653" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_458399ce-f30d-4c48-af69-b2a882c65a32" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockConsiderationReceivedOnTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_36305103-5eae-4014-ad42-a99e03a67c3f" xlink:to="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_458399ce-f30d-4c48-af69-b2a882c65a32" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_SaleOfStockExpectedConsiderationToBeReceivedOnTransaction_a03614ab-49d0-4d8d-8ed7-c13fe333b4ef" xlink:href="bakkt-20240630.xsd#bakkt_SaleOfStockExpectedConsiderationToBeReceivedOnTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_36305103-5eae-4014-ad42-a99e03a67c3f" xlink:to="loc_bakkt_SaleOfStockExpectedConsiderationToBeReceivedOnTransaction_a03614ab-49d0-4d8d-8ed7-c13fe333b4ef" xlink:type="arc" order="16"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.bakkt.com/role/StockholdersEquityNoncontrollingOwnershipInterestDetails" xlink:type="simple" xlink:href="bakkt-20240630.xsd#StockholdersEquityNoncontrollingOwnershipInterestDetails"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/StockholdersEquityNoncontrollingOwnershipInterestDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterestLineItems_752735bf-4a4e-4031-8a64-9d6fbcadf294" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MinorityInterestLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterestTable_0118bf53-73dc-453c-9f44-16ba313eb6b5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MinorityInterestTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_MinorityInterestLineItems_752735bf-4a4e-4031-8a64-9d6fbcadf294" xlink:to="loc_us-gaap_MinorityInterestTable_0118bf53-73dc-453c-9f44-16ba313eb6b5" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_9bfb0583-955b-4708-b9ec-96bf65e9c529" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_MinorityInterestTable_0118bf53-73dc-453c-9f44-16ba313eb6b5" xlink:to="loc_us-gaap_StatementClassOfStockAxis_9bfb0583-955b-4708-b9ec-96bf65e9c529" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_9bfb0583-955b-4708-b9ec-96bf65e9c529_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_9bfb0583-955b-4708-b9ec-96bf65e9c529" xlink:to="loc_us-gaap_ClassOfStockDomain_9bfb0583-955b-4708-b9ec-96bf65e9c529_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_75dd0da9-0c1c-48ff-8fc8-6e7c9d65abd2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_9bfb0583-955b-4708-b9ec-96bf65e9c529" xlink:to="loc_us-gaap_ClassOfStockDomain_75dd0da9-0c1c-48ff-8fc8-6e7c9d65abd2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_cf17a514-3cc6-415a-98c5-9efaa3ddca34" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_75dd0da9-0c1c-48ff-8fc8-6e7c9d65abd2" xlink:to="loc_us-gaap_CommonClassAMember_cf17a514-3cc6-415a-98c5-9efaa3ddca34" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_CommonClassVMember_0c539476-d892-4c0c-982f-18d1593326da" xlink:href="bakkt-20240630.xsd#bakkt_CommonClassVMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_75dd0da9-0c1c-48ff-8fc8-6e7c9d65abd2" xlink:to="loc_bakkt_CommonClassVMember_0c539476-d892-4c0c-982f-18d1593326da" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_980f7f30-fb2b-4d93-b41f-fb890a5f96ca" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_MinorityInterestTable_0118bf53-73dc-453c-9f44-16ba313eb6b5" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_980f7f30-fb2b-4d93-b41f-fb890a5f96ca" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_980f7f30-fb2b-4d93-b41f-fb890a5f96ca_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_980f7f30-fb2b-4d93-b41f-fb890a5f96ca" xlink:to="loc_us-gaap_EquityComponentDomain_980f7f30-fb2b-4d93-b41f-fb890a5f96ca_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_b61ab5b4-7afd-4bb3-9ad8-d4c70ac0c89a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_980f7f30-fb2b-4d93-b41f-fb890a5f96ca" xlink:to="loc_us-gaap_EquityComponentDomain_b61ab5b4-7afd-4bb3-9ad8-d4c70ac0c89a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ParentMember_94d6e75e-f0db-472d-9c0a-c4d3bc5ab200" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ParentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_b61ab5b4-7afd-4bb3-9ad8-d4c70ac0c89a" xlink:to="loc_us-gaap_ParentMember_94d6e75e-f0db-472d-9c0a-c4d3bc5ab200" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoncontrollingInterestMember_278509ee-6467-450f-a113-ca8249f2453c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NoncontrollingInterestMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_b61ab5b4-7afd-4bb3-9ad8-d4c70ac0c89a" xlink:to="loc_us-gaap_NoncontrollingInterestMember_278509ee-6467-450f-a113-ca8249f2453c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_ed369ed4-fd2f-4270-a81d-40c0f547e3f5" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_MinorityInterestTable_0118bf53-73dc-453c-9f44-16ba313eb6b5" xlink:to="loc_dei_LegalEntityAxis_ed369ed4-fd2f-4270-a81d-40c0f547e3f5" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_ed369ed4-fd2f-4270-a81d-40c0f547e3f5_default" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_ed369ed4-fd2f-4270-a81d-40c0f547e3f5" xlink:to="loc_dei_EntityDomain_ed369ed4-fd2f-4270-a81d-40c0f547e3f5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_6ea10dd6-99aa-455a-aecd-b226f75022c8" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_ed369ed4-fd2f-4270-a81d-40c0f547e3f5" xlink:to="loc_dei_EntityDomain_6ea10dd6-99aa-455a-aecd-b226f75022c8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_BakktOpcoHoldingsLLCMember_ed5e0406-dbd0-44d9-aa3c-9850efc9b43c" xlink:href="bakkt-20240630.xsd#bakkt_BakktOpcoHoldingsLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_6ea10dd6-99aa-455a-aecd-b226f75022c8" xlink:to="loc_bakkt_BakktOpcoHoldingsLLCMember_ed5e0406-dbd0-44d9-aa3c-9850efc9b43c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipAxis_bced970a-3278-49a3-85d2-ef91b82656e4" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_OwnershipAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_MinorityInterestTable_0118bf53-73dc-453c-9f44-16ba313eb6b5" xlink:to="loc_srt_OwnershipAxis_bced970a-3278-49a3-85d2-ef91b82656e4" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipDomain_bced970a-3278-49a3-85d2-ef91b82656e4_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_OwnershipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_OwnershipAxis_bced970a-3278-49a3-85d2-ef91b82656e4" xlink:to="loc_srt_OwnershipDomain_bced970a-3278-49a3-85d2-ef91b82656e4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipDomain_4938f7f9-42d6-4d22-8e83-d264176d273a" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_OwnershipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_OwnershipAxis_bced970a-3278-49a3-85d2-ef91b82656e4" xlink:to="loc_srt_OwnershipDomain_4938f7f9-42d6-4d22-8e83-d264176d273a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_BakktOpcoHoldingsLLCMember_2ca5ee91-761d-4171-9950-e3162e1d471c" xlink:href="bakkt-20240630.xsd#bakkt_BakktOpcoHoldingsLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_OwnershipDomain_4938f7f9-42d6-4d22-8e83-d264176d273a" xlink:to="loc_bakkt_BakktOpcoHoldingsLLCMember_2ca5ee91-761d-4171-9950-e3162e1d471c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonUnitOutstanding_d333632c-5e8d-4971-a9bb-03a34639b063" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonUnitOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MinorityInterestLineItems_752735bf-4a4e-4031-8a64-9d6fbcadf294" xlink:to="loc_us-gaap_CommonUnitOutstanding_d333632c-5e8d-4971-a9bb-03a34639b063" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterestOwnershipPercentageByParent_5ac3c5bb-97ac-460b-a220-00adbffcca7c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MinorityInterestOwnershipPercentageByParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MinorityInterestLineItems_752735bf-4a4e-4031-8a64-9d6fbcadf294" xlink:to="loc_us-gaap_MinorityInterestOwnershipPercentageByParent_5ac3c5bb-97ac-460b-a220-00adbffcca7c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners_32f6ff22-86c1-4aa5-98a5-e46ea8a1c60d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MinorityInterestLineItems_752735bf-4a4e-4031-8a64-9d6fbcadf294" xlink:to="loc_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners_32f6ff22-86c1-4aa5-98a5-e46ea8a1c60d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_NoncontrollingInterestOwnershipPercentage_953f4fe1-3f28-4453-9d4e-2cdc05707fb7" xlink:href="bakkt-20240630.xsd#bakkt_NoncontrollingInterestOwnershipPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MinorityInterestLineItems_752735bf-4a4e-4031-8a64-9d6fbcadf294" xlink:to="loc_bakkt_NoncontrollingInterestOwnershipPercentage_953f4fe1-3f28-4453-9d4e-2cdc05707fb7" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.bakkt.com/role/ShareBasedandUnitBasedCompensationNarrativeDetails" xlink:type="simple" xlink:href="bakkt-20240630.xsd#ShareBasedandUnitBasedCompensationNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/ShareBasedandUnitBasedCompensationNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0c1ad4e7-2b53-4863-a610-a5fdb18e50a2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_acac7c63-cd4d-4e9e-92b1-092524951fe1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0c1ad4e7-2b53-4863-a610-a5fdb18e50a2" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_acac7c63-cd4d-4e9e-92b1-092524951fe1" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameAxis_a3b13b53-0927-483a-a7ff-2ba741879a67" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PlanNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_acac7c63-cd4d-4e9e-92b1-092524951fe1" xlink:to="loc_us-gaap_PlanNameAxis_a3b13b53-0927-483a-a7ff-2ba741879a67" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_a3b13b53-0927-483a-a7ff-2ba741879a67_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PlanNameAxis_a3b13b53-0927-483a-a7ff-2ba741879a67" xlink:to="loc_us-gaap_PlanNameDomain_a3b13b53-0927-483a-a7ff-2ba741879a67_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_87b68a2a-a9ec-4a0d-a828-685614153396" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PlanNameAxis_a3b13b53-0927-483a-a7ff-2ba741879a67" xlink:to="loc_us-gaap_PlanNameDomain_87b68a2a-a9ec-4a0d-a828-685614153396" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_A2021OmnibusIncentivePlanMember_cfcceabf-e82b-4a2c-94b0-078da6dbb187" xlink:href="bakkt-20240630.xsd#bakkt_A2021OmnibusIncentivePlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_87b68a2a-a9ec-4a0d-a828-685614153396" xlink:to="loc_bakkt_A2021OmnibusIncentivePlanMember_cfcceabf-e82b-4a2c-94b0-078da6dbb187" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_OpcoPlanMember_cc716aa6-f63b-4092-8114-76c572214733" xlink:href="bakkt-20240630.xsd#bakkt_OpcoPlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_87b68a2a-a9ec-4a0d-a828-685614153396" xlink:to="loc_bakkt_OpcoPlanMember_cc716aa6-f63b-4092-8114-76c572214733" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_16096aa7-b3b2-49ab-83e0-d460f112804c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_acac7c63-cd4d-4e9e-92b1-092524951fe1" xlink:to="loc_us-gaap_AwardTypeAxis_16096aa7-b3b2-49ab-83e0-d460f112804c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_16096aa7-b3b2-49ab-83e0-d460f112804c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_16096aa7-b3b2-49ab-83e0-d460f112804c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_16096aa7-b3b2-49ab-83e0-d460f112804c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_32be5316-aca1-4b73-8b84-080f18a40446" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_16096aa7-b3b2-49ab-83e0-d460f112804c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_32be5316-aca1-4b73-8b84-080f18a40446" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_RestrictedStockUnitsRSUsAndPerformanceStockUnitsPSUsMember_6dfc8ea0-c066-40d5-b28c-d7bd642e7061" xlink:href="bakkt-20240630.xsd#bakkt_RestrictedStockUnitsRSUsAndPerformanceStockUnitsPSUsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_32be5316-aca1-4b73-8b84-080f18a40446" xlink:to="loc_bakkt_RestrictedStockUnitsRSUsAndPerformanceStockUnitsPSUsMember_6dfc8ea0-c066-40d5-b28c-d7bd642e7061" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_47098d39-830d-43ee-bb66-cd80754eb4f7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bakkt_RestrictedStockUnitsRSUsAndPerformanceStockUnitsPSUsMember_6dfc8ea0-c066-40d5-b28c-d7bd642e7061" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_47098d39-830d-43ee-bb66-cd80754eb4f7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_PerformanceStockUnitsPSUsMember_cd396054-8dab-4987-a750-7974f9267d13" xlink:href="bakkt-20240630.xsd#bakkt_PerformanceStockUnitsPSUsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_bakkt_RestrictedStockUnitsRSUsAndPerformanceStockUnitsPSUsMember_6dfc8ea0-c066-40d5-b28c-d7bd642e7061" xlink:to="loc_bakkt_PerformanceStockUnitsPSUsMember_cd396054-8dab-4987-a750-7974f9267d13" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_PreferredIncentiveUnitsMember_c55cd789-154f-461a-a865-d9cbaa31c450" xlink:href="bakkt-20240630.xsd#bakkt_PreferredIncentiveUnitsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_32be5316-aca1-4b73-8b84-080f18a40446" xlink:to="loc_bakkt_PreferredIncentiveUnitsMember_c55cd789-154f-461a-a865-d9cbaa31c450" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_CommonIncentiveUnitsMember_cd7a787a-ce5b-4461-a095-1b2f09c6c9f4" xlink:href="bakkt-20240630.xsd#bakkt_CommonIncentiveUnitsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_32be5316-aca1-4b73-8b84-080f18a40446" xlink:to="loc_bakkt_CommonIncentiveUnitsMember_cd7a787a-ce5b-4461-a095-1b2f09c6c9f4" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredCompensationArrangementWithIndividualShareBasedPaymentsByTypeOfDeferredCompensationAxis_b7048b21-460a-4dd8-9091-b8d2add541c3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredCompensationArrangementWithIndividualShareBasedPaymentsByTypeOfDeferredCompensationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_acac7c63-cd4d-4e9e-92b1-092524951fe1" xlink:to="loc_us-gaap_DeferredCompensationArrangementWithIndividualShareBasedPaymentsByTypeOfDeferredCompensationAxis_b7048b21-460a-4dd8-9091-b8d2add541c3" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityBasedArrangementsIndividualContractsTypeOfDeferredCompensationDomain_b7048b21-460a-4dd8-9091-b8d2add541c3_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquityBasedArrangementsIndividualContractsTypeOfDeferredCompensationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DeferredCompensationArrangementWithIndividualShareBasedPaymentsByTypeOfDeferredCompensationAxis_b7048b21-460a-4dd8-9091-b8d2add541c3" xlink:to="loc_us-gaap_EquityBasedArrangementsIndividualContractsTypeOfDeferredCompensationDomain_b7048b21-460a-4dd8-9091-b8d2add541c3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityBasedArrangementsIndividualContractsTypeOfDeferredCompensationDomain_821511ca-ce12-4ea1-a7c8-eb8e225d6e98" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquityBasedArrangementsIndividualContractsTypeOfDeferredCompensationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DeferredCompensationArrangementWithIndividualShareBasedPaymentsByTypeOfDeferredCompensationAxis_b7048b21-460a-4dd8-9091-b8d2add541c3" xlink:to="loc_us-gaap_EquityBasedArrangementsIndividualContractsTypeOfDeferredCompensationDomain_821511ca-ce12-4ea1-a7c8-eb8e225d6e98" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredCompensationShareBasedPaymentsMember_d454e569-8291-4274-8e56-4e86033eb7aa" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredCompensationShareBasedPaymentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityBasedArrangementsIndividualContractsTypeOfDeferredCompensationDomain_821511ca-ce12-4ea1-a7c8-eb8e225d6e98" xlink:to="loc_us-gaap_DeferredCompensationShareBasedPaymentsMember_d454e569-8291-4274-8e56-4e86033eb7aa" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_6bebcbe2-1043-4b23-8061-325db55e2bac" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_acac7c63-cd4d-4e9e-92b1-092524951fe1" xlink:to="loc_srt_RangeAxis_6bebcbe2-1043-4b23-8061-325db55e2bac" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_6bebcbe2-1043-4b23-8061-325db55e2bac_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_6bebcbe2-1043-4b23-8061-325db55e2bac" xlink:to="loc_srt_RangeMember_6bebcbe2-1043-4b23-8061-325db55e2bac_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_ffa59edc-928d-4ccc-9ef2-f717fdbdc0a2" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_6bebcbe2-1043-4b23-8061-325db55e2bac" xlink:to="loc_srt_RangeMember_ffa59edc-928d-4ccc-9ef2-f717fdbdc0a2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_e5d8612f-7caf-4305-af78-61aa0f99f268" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_ffa59edc-928d-4ccc-9ef2-f717fdbdc0a2" xlink:to="loc_srt_MinimumMember_e5d8612f-7caf-4305-af78-61aa0f99f268" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_e0e465d4-62e5-4c27-90d1-880f241feab1" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_ffa59edc-928d-4ccc-9ef2-f717fdbdc0a2" xlink:to="loc_srt_MaximumMember_e0e465d4-62e5-4c27-90d1-880f241feab1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingAxis_c4392743-ed8e-49b8-8020-d865c3865dcc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_VestingAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_acac7c63-cd4d-4e9e-92b1-092524951fe1" xlink:to="loc_us-gaap_VestingAxis_c4392743-ed8e-49b8-8020-d865c3865dcc" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingDomain_c4392743-ed8e-49b8-8020-d865c3865dcc_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_VestingDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_VestingAxis_c4392743-ed8e-49b8-8020-d865c3865dcc" xlink:to="loc_us-gaap_VestingDomain_c4392743-ed8e-49b8-8020-d865c3865dcc_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingDomain_0b3a4d76-cb1b-4a60-8040-16253bf2ea26" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_VestingDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_VestingAxis_c4392743-ed8e-49b8-8020-d865c3865dcc" xlink:to="loc_us-gaap_VestingDomain_0b3a4d76-cb1b-4a60-8040-16253bf2ea26" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationAwardTrancheOneMember_749390d9-576a-4482-8587-be8b13d2f302" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationAwardTrancheOneMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VestingDomain_0b3a4d76-cb1b-4a60-8040-16253bf2ea26" xlink:to="loc_us-gaap_ShareBasedCompensationAwardTrancheOneMember_749390d9-576a-4482-8587-be8b13d2f302" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationAwardTrancheTwoMember_3e2c4e38-b05d-4529-89cd-e4b9e4fd5769" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationAwardTrancheTwoMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VestingDomain_0b3a4d76-cb1b-4a60-8040-16253bf2ea26" xlink:to="loc_us-gaap_ShareBasedCompensationAwardTrancheTwoMember_3e2c4e38-b05d-4529-89cd-e4b9e4fd5769" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationAwardTrancheThreeMember_887206c1-bc11-4489-9945-9a3044890569" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationAwardTrancheThreeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VestingDomain_0b3a4d76-cb1b-4a60-8040-16253bf2ea26" xlink:to="loc_us-gaap_ShareBasedCompensationAwardTrancheThreeMember_887206c1-bc11-4489-9945-9a3044890569" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_98e31723-4521-4120-b696-7b6dbd64b80a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_acac7c63-cd4d-4e9e-92b1-092524951fe1" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_98e31723-4521-4120-b696-7b6dbd64b80a" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_98e31723-4521-4120-b696-7b6dbd64b80a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_98e31723-4521-4120-b696-7b6dbd64b80a" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_98e31723-4521-4120-b696-7b6dbd64b80a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_48591f14-ecf6-463d-a103-5a55eec110ba" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_98e31723-4521-4120-b696-7b6dbd64b80a" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_48591f14-ecf6-463d-a103-5a55eec110ba" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_OpcoMember_c5fb7512-22a2-4aa9-9f82-961720a79266" xlink:href="bakkt-20240630.xsd#bakkt_OpcoMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_48591f14-ecf6-463d-a103-5a55eec110ba" xlink:to="loc_bakkt_OpcoMember_c5fb7512-22a2-4aa9-9f82-961720a79266" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockCapitalSharesReservedForFutureIssuance_df2aba4d-6132-4db5-88fa-0c2242e08648" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockCapitalSharesReservedForFutureIssuance"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0c1ad4e7-2b53-4863-a610-a5fdb18e50a2" xlink:to="loc_us-gaap_CommonStockCapitalSharesReservedForFutureIssuance_df2aba4d-6132-4db5-88fa-0c2242e08648" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_CommonStockCapitalSharesReservedForFutureIssuancePeriodIncreaseDecrease_a158b6c6-2613-4eac-aaf2-e56de56a7aa2" xlink:href="bakkt-20240630.xsd#bakkt_CommonStockCapitalSharesReservedForFutureIssuancePeriodIncreaseDecrease"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0c1ad4e7-2b53-4863-a610-a5fdb18e50a2" xlink:to="loc_bakkt_CommonStockCapitalSharesReservedForFutureIssuancePeriodIncreaseDecrease_a158b6c6-2613-4eac-aaf2-e56de56a7aa2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_f0d12d7c-9f61-476c-838a-cef2cbaf616a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0c1ad4e7-2b53-4863-a610-a5fdb18e50a2" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_f0d12d7c-9f61-476c-838a-cef2cbaf616a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_8f147681-f9b4-48e4-9a29-af7629288cbf" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0c1ad4e7-2b53-4863-a610-a5fdb18e50a2" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_8f147681-f9b4-48e4-9a29-af7629288cbf" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_e4201577-a1d7-4b26-b218-cd46f6c9c7dd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0c1ad4e7-2b53-4863-a610-a5fdb18e50a2" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_e4201577-a1d7-4b26-b218-cd46f6c9c7dd" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_d8196eef-3731-4dfd-ad3a-44dc3e83b161" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0c1ad4e7-2b53-4863-a610-a5fdb18e50a2" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_d8196eef-3731-4dfd-ad3a-44dc3e83b161" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedCompensationCost_bdd15c3f-6e94-4987-9b8c-7e0adda641fa" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedCompensationCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0c1ad4e7-2b53-4863-a610-a5fdb18e50a2" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAcceleratedCompensationCost_bdd15c3f-6e94-4987-9b8c-7e0adda641fa" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_ShareBasedPaymentArrangementAcceleratedCostReversalDueToForfeitures_4763dc01-0434-4505-92c3-8f10f9171ae8" xlink:href="bakkt-20240630.xsd#bakkt_ShareBasedPaymentArrangementAcceleratedCostReversalDueToForfeitures"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0c1ad4e7-2b53-4863-a610-a5fdb18e50a2" xlink:to="loc_bakkt_ShareBasedPaymentArrangementAcceleratedCostReversalDueToForfeitures_4763dc01-0434-4505-92c3-8f10f9171ae8" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_ShareBasedCompensationArrangementByShareBasedPaymentAwardActualUnitsEarnedPercentageOfTargetUnits_71f45928-e1f3-4349-80b0-44005df7e991" xlink:href="bakkt-20240630.xsd#bakkt_ShareBasedCompensationArrangementByShareBasedPaymentAwardActualUnitsEarnedPercentageOfTargetUnits"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0c1ad4e7-2b53-4863-a610-a5fdb18e50a2" xlink:to="loc_bakkt_ShareBasedCompensationArrangementByShareBasedPaymentAwardActualUnitsEarnedPercentageOfTargetUnits_71f45928-e1f3-4349-80b0-44005df7e991" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_4ad37d44-4ad8-4eea-930d-3cde17be051f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0c1ad4e7-2b53-4863-a610-a5fdb18e50a2" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_4ad37d44-4ad8-4eea-930d-3cde17be051f" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_a0112f51-f045-4ca0-8115-c24829a42d79" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0c1ad4e7-2b53-4863-a610-a5fdb18e50a2" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_a0112f51-f045-4ca0-8115-c24829a42d79" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_DeferredCompensationArrangementWithIndividualSharesOutstanding_1cc84066-cee5-4414-a3ed-566a9e468b40" xlink:href="bakkt-20240630.xsd#bakkt_DeferredCompensationArrangementWithIndividualSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0c1ad4e7-2b53-4863-a610-a5fdb18e50a2" xlink:to="loc_bakkt_DeferredCompensationArrangementWithIndividualSharesOutstanding_1cc84066-cee5-4414-a3ed-566a9e468b40" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_3138b8f5-2e2e-426a-9492-a2b186a3d0bc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0c1ad4e7-2b53-4863-a610-a5fdb18e50a2" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_3138b8f5-2e2e-426a-9492-a2b186a3d0bc" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredCompensationArrangementWithIndividualSharesIssued_7ff94c1f-bcdd-445f-9ecf-ca81deded2ab" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredCompensationArrangementWithIndividualSharesIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0c1ad4e7-2b53-4863-a610-a5fdb18e50a2" xlink:to="loc_us-gaap_DeferredCompensationArrangementWithIndividualSharesIssued_7ff94c1f-bcdd-445f-9ecf-ca81deded2ab" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredCompensationArrangementWithIndividualDistributionPaid_08ce84f2-3e06-4243-9f56-4aaefbb5dd24" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredCompensationArrangementWithIndividualDistributionPaid"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0c1ad4e7-2b53-4863-a610-a5fdb18e50a2" xlink:to="loc_us-gaap_DeferredCompensationArrangementWithIndividualDistributionPaid_08ce84f2-3e06-4243-9f56-4aaefbb5dd24" xlink:type="arc" order="14"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.bakkt.com/role/ShareBasedandUnitBasedCompensationRSUPSUActivityDetails" xlink:type="simple" xlink:href="bakkt-20240630.xsd#ShareBasedandUnitBasedCompensationRSUPSUActivityDetails"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/ShareBasedandUnitBasedCompensationRSUPSUActivityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_88397c6d-85e5-4ea4-ae77-18dd7b9b49d7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_b4545711-7cc2-4443-ac3f-6017b68a3f76" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_88397c6d-85e5-4ea4-ae77-18dd7b9b49d7" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_b4545711-7cc2-4443-ac3f-6017b68a3f76" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_51e8f46b-7b98-4446-8a6d-d04476b7391b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_b4545711-7cc2-4443-ac3f-6017b68a3f76" xlink:to="loc_us-gaap_AwardTypeAxis_51e8f46b-7b98-4446-8a6d-d04476b7391b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_51e8f46b-7b98-4446-8a6d-d04476b7391b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_51e8f46b-7b98-4446-8a6d-d04476b7391b" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_51e8f46b-7b98-4446-8a6d-d04476b7391b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_28aebdff-eb97-4959-bb86-7e3f4994450f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_51e8f46b-7b98-4446-8a6d-d04476b7391b" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_28aebdff-eb97-4959-bb86-7e3f4994450f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_RestrictedStockUnitsRSUsAndPerformanceStockUnitsPSUsMember_45731494-0f27-453c-9457-5e5fea5e8622" xlink:href="bakkt-20240630.xsd#bakkt_RestrictedStockUnitsRSUsAndPerformanceStockUnitsPSUsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_28aebdff-eb97-4959-bb86-7e3f4994450f" xlink:to="loc_bakkt_RestrictedStockUnitsRSUsAndPerformanceStockUnitsPSUsMember_45731494-0f27-453c-9457-5e5fea5e8622" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_09812d3e-b2e6-4e49-8e36-33f583db12f7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_88397c6d-85e5-4ea4-ae77-18dd7b9b49d7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_09812d3e-b2e6-4e49-8e36-33f583db12f7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_cc496620-12cb-450d-9816-4e1ad6278be0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_09812d3e-b2e6-4e49-8e36-33f583db12f7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_cc496620-12cb-450d-9816-4e1ad6278be0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_eb5b2a3a-8517-4b4b-b839-eb83433ef9f6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_09812d3e-b2e6-4e49-8e36-33f583db12f7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_eb5b2a3a-8517-4b4b-b839-eb83433ef9f6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_7940380f-4cf9-4816-b161-bade7c0ed6bc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_09812d3e-b2e6-4e49-8e36-33f583db12f7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_7940380f-4cf9-4816-b161-bade7c0ed6bc" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_bf4cceda-b1eb-4da0-948a-df8843c8070e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_09812d3e-b2e6-4e49-8e36-33f583db12f7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_bf4cceda-b1eb-4da0-948a-df8843c8070e" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_6e37118b-6dcb-4d07-816a-e6b08408aa59" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms_5bcd1227-63d8-407c-84fc-5e9c5a10eeff" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_88397c6d-85e5-4ea4-ae77-18dd7b9b49d7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms_5bcd1227-63d8-407c-84fc-5e9c5a10eeff" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_bf032fba-064f-432f-b558-d2fc902dfc48" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_88397c6d-85e5-4ea4-ae77-18dd7b9b49d7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_bf032fba-064f-432f-b558-d2fc902dfc48" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_984cd435-80d6-4c9e-8977-a1420fe48b4e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_bf032fba-064f-432f-b558-d2fc902dfc48" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_984cd435-80d6-4c9e-8977-a1420fe48b4e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_7f0348a5-1e77-46de-9277-ab4953aa5343" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_bf032fba-064f-432f-b558-d2fc902dfc48" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_7f0348a5-1e77-46de-9277-ab4953aa5343" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_72af090a-1ac7-44fd-a3e9-6060a7c52831" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueAbstract_f1f146f8-3069-4629-8292-3e4be4992239" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_88397c6d-85e5-4ea4-ae77-18dd7b9b49d7" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueAbstract_f1f146f8-3069-4629-8292-3e4be4992239" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueGranted_beb6501e-40c8-46c6-814c-a4cb3f2d46de" xlink:href="bakkt-20240630.xsd#bakkt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueGranted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueAbstract_f1f146f8-3069-4629-8292-3e4be4992239" xlink:to="loc_bakkt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueGranted_beb6501e-40c8-46c6-814c-a4cb3f2d46de" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_93e1ef3b-50ad-43ba-92bb-7572934a3491" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_88397c6d-85e5-4ea4-ae77-18dd7b9b49d7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_93e1ef3b-50ad-43ba-92bb-7572934a3491" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.bakkt.com/role/ShareBasedandUnitBasedCompensationCompensationExpenseDetails" xlink:type="simple" xlink:href="bakkt-20240630.xsd#ShareBasedandUnitBasedCompensationCompensationExpenseDetails"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/ShareBasedandUnitBasedCompensationCompensationExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_9be7b12d-30fe-4fb6-81fa-4fc934da580e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_f817c890-6681-4cb2-80aa-d0c809009026" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_9be7b12d-30fe-4fb6-81fa-4fc934da580e" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_f817c890-6681-4cb2-80aa-d0c809009026" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_7e2def1b-33e5-4252-a295-0d220e1e5702" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_f817c890-6681-4cb2-80aa-d0c809009026" xlink:to="loc_us-gaap_AwardTypeAxis_7e2def1b-33e5-4252-a295-0d220e1e5702" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_7e2def1b-33e5-4252-a295-0d220e1e5702_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_7e2def1b-33e5-4252-a295-0d220e1e5702" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_7e2def1b-33e5-4252-a295-0d220e1e5702_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_27177541-d41a-4b3c-aa25-57801e724382" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_7e2def1b-33e5-4252-a295-0d220e1e5702" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_27177541-d41a-4b3c-aa25-57801e724382" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_CommonIncentiveUnitsMember_22236475-17e9-49df-aac8-31be3d481507" xlink:href="bakkt-20240630.xsd#bakkt_CommonIncentiveUnitsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_27177541-d41a-4b3c-aa25-57801e724382" xlink:to="loc_bakkt_CommonIncentiveUnitsMember_22236475-17e9-49df-aac8-31be3d481507" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_ba1b530f-56a5-4fcc-b511-e41425f395fe" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_9be7b12d-30fe-4fb6-81fa-4fc934da580e" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_ba1b530f-56a5-4fcc-b511-e41425f395fe" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense_5ceaf3a9-afb9-47cc-9c23-b8d1f2bc23cf" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_9be7b12d-30fe-4fb6-81fa-4fc934da580e" xlink:to="loc_us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense_5ceaf3a9-afb9-47cc-9c23-b8d1f2bc23cf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_ShareBasedPaymentArrangementExpenseAndDeferredCompensationArrangementWithIndividualCompensationExpenseNetOfForfeitures_b0ed6352-31a2-4027-b93d-a1b5dd53a2b8" xlink:href="bakkt-20240630.xsd#bakkt_ShareBasedPaymentArrangementExpenseAndDeferredCompensationArrangementWithIndividualCompensationExpenseNetOfForfeitures"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_9be7b12d-30fe-4fb6-81fa-4fc934da580e" xlink:to="loc_bakkt_ShareBasedPaymentArrangementExpenseAndDeferredCompensationArrangementWithIndividualCompensationExpenseNetOfForfeitures_b0ed6352-31a2-4027-b93d-a1b5dd53a2b8" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.bakkt.com/role/ShareBasedandUnitBasedCompensationUnitActivityDetails" xlink:type="simple" xlink:href="bakkt-20240630.xsd#ShareBasedandUnitBasedCompensationUnitActivityDetails"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/ShareBasedandUnitBasedCompensationUnitActivityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c5d33ec7-8592-488c-b1e0-4c200c7513e0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_48dfc4bb-6b7f-45df-b4a3-b4b196391b42" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c5d33ec7-8592-488c-b1e0-4c200c7513e0" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_48dfc4bb-6b7f-45df-b4a3-b4b196391b42" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_05618aca-6aac-484d-b0e2-62e375d353b7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_48dfc4bb-6b7f-45df-b4a3-b4b196391b42" xlink:to="loc_us-gaap_AwardTypeAxis_05618aca-6aac-484d-b0e2-62e375d353b7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_05618aca-6aac-484d-b0e2-62e375d353b7_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_05618aca-6aac-484d-b0e2-62e375d353b7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_05618aca-6aac-484d-b0e2-62e375d353b7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_09209312-baef-45b5-b3eb-d6573baea480" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_05618aca-6aac-484d-b0e2-62e375d353b7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_09209312-baef-45b5-b3eb-d6573baea480" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_CommonIncentiveUnitsMember_0e9b274d-3604-44c5-b069-4dc2d6b7cd95" xlink:href="bakkt-20240630.xsd#bakkt_CommonIncentiveUnitsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_09209312-baef-45b5-b3eb-d6573baea480" xlink:to="loc_bakkt_CommonIncentiveUnitsMember_0e9b274d-3604-44c5-b069-4dc2d6b7cd95" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_7b347672-3733-4c25-8366-8adf1f02f441" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c5d33ec7-8592-488c-b1e0-4c200c7513e0" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_7b347672-3733-4c25-8366-8adf1f02f441" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_45721fe0-c1fe-4884-960d-eca5dc0f2ea8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_7b347672-3733-4c25-8366-8adf1f02f441" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_45721fe0-c1fe-4884-960d-eca5dc0f2ea8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_a2fb6d7a-5687-4b52-aa93-1ad365d3b0ec" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_7b347672-3733-4c25-8366-8adf1f02f441" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_a2fb6d7a-5687-4b52-aa93-1ad365d3b0ec" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_9f4e25b3-e367-4b04-acbd-3e1753ed526d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_7b347672-3733-4c25-8366-8adf1f02f441" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_9f4e25b3-e367-4b04-acbd-3e1753ed526d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExchangesInPeriod_4d6f477e-c526-4319-83a2-ec912f77e69e" xlink:href="bakkt-20240630.xsd#bakkt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExchangesInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_7b347672-3733-4c25-8366-8adf1f02f441" xlink:to="loc_bakkt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExchangesInPeriod_4d6f477e-c526-4319-83a2-ec912f77e69e" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_72bbf56d-773a-4231-a6a6-4c394dd647b0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms_2cc65552-7149-47e7-bf39-df9811e9a871" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c5d33ec7-8592-488c-b1e0-4c200c7513e0" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms_2cc65552-7149-47e7-bf39-df9811e9a871" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_4902ee85-24aa-4638-a773-6e23fc648a53" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c5d33ec7-8592-488c-b1e0-4c200c7513e0" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_4902ee85-24aa-4638-a773-6e23fc648a53" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_85fc4bc3-fcae-42e5-8e44-044171ff8110" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_4902ee85-24aa-4638-a773-6e23fc648a53" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_85fc4bc3-fcae-42e5-8e44-044171ff8110" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_266f6a6c-05da-4da2-b792-d58976486f89" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueAbstract_f1104c9e-5a5f-4e2a-97ab-dc1b8ea3172a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c5d33ec7-8592-488c-b1e0-4c200c7513e0" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueAbstract_f1104c9e-5a5f-4e2a-97ab-dc1b8ea3172a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding_d9c67ace-6f46-4ab0-b057-f2d9f63e81aa" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueAbstract_f1104c9e-5a5f-4e2a-97ab-dc1b8ea3172a" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding_d9c67ace-6f46-4ab0-b057-f2d9f63e81aa" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.bakkt.com/role/NetLosspershareAntidilutiveSharesExcludedFromComputationDetails" xlink:type="simple" xlink:href="bakkt-20240630.xsd#NetLosspershareAntidilutiveSharesExcludedFromComputationDetails"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/NetLosspershareAntidilutiveSharesExcludedFromComputationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_09753d4c-d5ef-4181-94dc-5e8f71a385a9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_3d55af01-d912-42d5-b631-1fb2ec86312b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_09753d4c-d5ef-4181-94dc-5e8f71a385a9" xlink:to="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_3d55af01-d912-42d5-b631-1fb2ec86312b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_0ea289d3-9d0a-402e-83c7-b8ae18c4c22f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_3d55af01-d912-42d5-b631-1fb2ec86312b" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_0ea289d3-9d0a-402e-83c7-b8ae18c4c22f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_0ea289d3-9d0a-402e-83c7-b8ae18c4c22f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_0ea289d3-9d0a-402e-83c7-b8ae18c4c22f" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_0ea289d3-9d0a-402e-83c7-b8ae18c4c22f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_e3682b43-fbcf-4ec6-b599-bc96822d637e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_0ea289d3-9d0a-402e-83c7-b8ae18c4c22f" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_e3682b43-fbcf-4ec6-b599-bc96822d637e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_RestrictedStockUnitsRSUsAndPerformanceStockUnitsPSUsMember_0dd5fa0f-3d5f-4fd9-8237-8156b3f67982" xlink:href="bakkt-20240630.xsd#bakkt_RestrictedStockUnitsRSUsAndPerformanceStockUnitsPSUsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_e3682b43-fbcf-4ec6-b599-bc96822d637e" xlink:to="loc_bakkt_RestrictedStockUnitsRSUsAndPerformanceStockUnitsPSUsMember_0dd5fa0f-3d5f-4fd9-8237-8156b3f67982" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantMember_b05505f8-6f86-453a-bd3d-86f619ac55fc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_WarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_e3682b43-fbcf-4ec6-b599-bc96822d637e" xlink:to="loc_us-gaap_WarrantMember_b05505f8-6f86-453a-bd3d-86f619ac55fc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_IncentiveUnitsOpcoMember_406b7710-1855-48f5-8939-f35663820421" xlink:href="bakkt-20240630.xsd#bakkt_IncentiveUnitsOpcoMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_e3682b43-fbcf-4ec6-b599-bc96822d637e" xlink:to="loc_bakkt_IncentiveUnitsOpcoMember_406b7710-1855-48f5-8939-f35663820421" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_CommonUnitsOpcoMember_7005232e-7622-4079-a9ae-97ab87dea94b" xlink:href="bakkt-20240630.xsd#bakkt_CommonUnitsOpcoMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_e3682b43-fbcf-4ec6-b599-bc96822d637e" xlink:to="loc_bakkt_CommonUnitsOpcoMember_7005232e-7622-4079-a9ae-97ab87dea94b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_a10e61d9-2566-4b68-a46d-7780d119a2ab" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_3d55af01-d912-42d5-b631-1fb2ec86312b" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_a10e61d9-2566-4b68-a46d-7780d119a2ab" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_a10e61d9-2566-4b68-a46d-7780d119a2ab_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_a10e61d9-2566-4b68-a46d-7780d119a2ab" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_a10e61d9-2566-4b68-a46d-7780d119a2ab_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_cbcbc109-c843-436a-b5a2-fc02c3931828" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_a10e61d9-2566-4b68-a46d-7780d119a2ab" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_cbcbc109-c843-436a-b5a2-fc02c3931828" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_PublicWarrantsMember_b9d30380-fdfa-425d-8898-f52380b1c134" xlink:href="bakkt-20240630.xsd#bakkt_PublicWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_cbcbc109-c843-436a-b5a2-fc02c3931828" xlink:to="loc_bakkt_PublicWarrantsMember_b9d30380-fdfa-425d-8898-f52380b1c134" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_OpcoWarrantsMember_70900584-5eff-4e90-a5cb-db4ceba1d543" xlink:href="bakkt-20240630.xsd#bakkt_OpcoWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_cbcbc109-c843-436a-b5a2-fc02c3931828" xlink:to="loc_bakkt_OpcoWarrantsMember_70900584-5eff-4e90-a5cb-db4ceba1d543" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_45b79ef2-73d5-4e93-8e84-42c35b2128a3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_09753d4c-d5ef-4181-94dc-5e8f71a385a9" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_45b79ef2-73d5-4e93-8e84-42c35b2128a3" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.bakkt.com/role/CommitmentandContingenciesNarrativeDetails" xlink:type="simple" xlink:href="bakkt-20240630.xsd#CommitmentandContingenciesNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/CommitmentandContingenciesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentsLineItems_3d332fb5-54fd-4b9e-9dea-17f3d85f0eb8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherCommitmentsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentsTable_086adc0f-921a-4bf8-abfa-01d4192cb6c3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherCommitmentsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_3d332fb5-54fd-4b9e-9dea-17f3d85f0eb8" xlink:to="loc_us-gaap_OtherCommitmentsTable_086adc0f-921a-4bf8-abfa-01d4192cb6c3" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentsAxis_d7d0af04-413e-4400-94a2-6d5a34bfc815" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherCommitmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_OtherCommitmentsTable_086adc0f-921a-4bf8-abfa-01d4192cb6c3" xlink:to="loc_us-gaap_OtherCommitmentsAxis_d7d0af04-413e-4400-94a2-6d5a34bfc815" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentsDomain_d7d0af04-413e-4400-94a2-6d5a34bfc815_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherCommitmentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_OtherCommitmentsAxis_d7d0af04-413e-4400-94a2-6d5a34bfc815" xlink:to="loc_us-gaap_OtherCommitmentsDomain_d7d0af04-413e-4400-94a2-6d5a34bfc815_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentsDomain_144876b9-6827-47a7-95c0-ce07d5a55882" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherCommitmentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_OtherCommitmentsAxis_d7d0af04-413e-4400-94a2-6d5a34bfc815" xlink:to="loc_us-gaap_OtherCommitmentsDomain_144876b9-6827-47a7-95c0-ce07d5a55882" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_CloudComputingArrangementMember_ff7826c1-a110-4f80-9f6b-3895e0f59755" xlink:href="bakkt-20240630.xsd#bakkt_CloudComputingArrangementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsDomain_144876b9-6827-47a7-95c0-ce07d5a55882" xlink:to="loc_bakkt_CloudComputingArrangementMember_ff7826c1-a110-4f80-9f6b-3895e0f59755" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_d8224c44-b768-46fa-882b-edb35da31b89" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_OtherCommitmentsTable_086adc0f-921a-4bf8-abfa-01d4192cb6c3" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_d8224c44-b768-46fa-882b-edb35da31b89" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_d8224c44-b768-46fa-882b-edb35da31b89_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_d8224c44-b768-46fa-882b-edb35da31b89" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_d8224c44-b768-46fa-882b-edb35da31b89_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_81c5ed3c-be7b-4436-b5f2-539d7bf62b40" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_d8224c44-b768-46fa-882b-edb35da31b89" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_81c5ed3c-be7b-4436-b5f2-539d7bf62b40" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_378cab9b-f9b1-48a1-b1e3-bc6c92b91260" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_81c5ed3c-be7b-4436-b5f2-539d7bf62b40" xlink:to="loc_us-gaap_SubsequentEventMember_378cab9b-f9b1-48a1-b1e3-bc6c92b91260" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedContributionPlanCostRecognized_f238ae8c-1c14-4d54-ab8a-3405b8a8ec07" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DefinedContributionPlanCostRecognized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_3d332fb5-54fd-4b9e-9dea-17f3d85f0eb8" xlink:to="loc_us-gaap_DefinedContributionPlanCostRecognized_f238ae8c-1c14-4d54-ab8a-3405b8a8ec07" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LitigationSettlementAmountAwardedToOtherParty_7d00a185-8a46-469a-9b41-5c9a6ad2e920" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LitigationSettlementAmountAwardedToOtherParty"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_3d332fb5-54fd-4b9e-9dea-17f3d85f0eb8" xlink:to="loc_us-gaap_LitigationSettlementAmountAwardedToOtherParty_7d00a185-8a46-469a-9b41-5c9a6ad2e920" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_PurchasingCardFacilityMaximumBorrowingCapacity_2ef13fa4-c87a-4d64-ab99-3c5025b78288" xlink:href="bakkt-20240630.xsd#bakkt_PurchasingCardFacilityMaximumBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_3d332fb5-54fd-4b9e-9dea-17f3d85f0eb8" xlink:to="loc_bakkt_PurchasingCardFacilityMaximumBorrowingCapacity_2ef13fa4-c87a-4d64-ab99-3c5025b78288" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_PurchasingCardFacilityLiquidityMaintenanceRequirementMinimum_54339790-8584-4372-bd4c-29440fd85166" xlink:href="bakkt-20240630.xsd#bakkt_PurchasingCardFacilityLiquidityMaintenanceRequirementMinimum"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_3d332fb5-54fd-4b9e-9dea-17f3d85f0eb8" xlink:to="loc_bakkt_PurchasingCardFacilityLiquidityMaintenanceRequirementMinimum_54339790-8584-4372-bd4c-29440fd85166" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermPurchaseCommitmentPeriod_270922db-d918-498f-926d-fa54cdf019b8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermPurchaseCommitmentPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_3d332fb5-54fd-4b9e-9dea-17f3d85f0eb8" xlink:to="loc_us-gaap_LongtermPurchaseCommitmentPeriod_270922db-d918-498f-926d-fa54cdf019b8" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LegalFees_8e0c7a5a-621d-4a0f-b51c-e98c05af517f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LegalFees"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_3d332fb5-54fd-4b9e-9dea-17f3d85f0eb8" xlink:to="loc_us-gaap_LegalFees_8e0c7a5a-621d-4a0f-b51c-e98c05af517f" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossOnContractTermination_72df6774-829d-43a4-b288-f0f9855684f4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LossOnContractTermination"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_3d332fb5-54fd-4b9e-9dea-17f3d85f0eb8" xlink:to="loc_us-gaap_LossOnContractTermination_72df6774-829d-43a4-b288-f0f9855684f4" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyNumberOfDefendants_6c4c321d-0a11-4b98-a390-71a1c96d604d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LossContingencyNumberOfDefendants"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_3d332fb5-54fd-4b9e-9dea-17f3d85f0eb8" xlink:to="loc_us-gaap_LossContingencyNumberOfDefendants_6c4c321d-0a11-4b98-a390-71a1c96d604d" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForLegalSettlements_1bb9bab0-7447-4f57-a543-5a1e837e815f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsForLegalSettlements"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_3d332fb5-54fd-4b9e-9dea-17f3d85f0eb8" xlink:to="loc_us-gaap_PaymentsForLegalSettlements_1bb9bab0-7447-4f57-a543-5a1e837e815f" xlink:type="arc" order="8"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.bakkt.com/role/FairValueMeasurementsScheduleofFairValueAssetsandLiabilitiesMeasuredonRecurringBasisDetails" xlink:type="simple" xlink:href="bakkt-20240630.xsd#FairValueMeasurementsScheduleofFairValueAssetsandLiabilitiesMeasuredonRecurringBasisDetails"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/FairValueMeasurementsScheduleofFairValueAssetsandLiabilitiesMeasuredonRecurringBasisDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_358bc247-5660-4465-8ba5-2ab2ef0f1c53" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_edfc20bb-3bdc-4546-a11f-c45c8bad31b1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_358bc247-5660-4465-8ba5-2ab2ef0f1c53" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_edfc20bb-3bdc-4546-a11f-c45c8bad31b1" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_65169319-ed59-4c6f-90e4-69b4ae9fa966" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_edfc20bb-3bdc-4546-a11f-c45c8bad31b1" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_65169319-ed59-4c6f-90e4-69b4ae9fa966" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_65169319-ed59-4c6f-90e4-69b4ae9fa966_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_65169319-ed59-4c6f-90e4-69b4ae9fa966" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_65169319-ed59-4c6f-90e4-69b4ae9fa966_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_8b0ecb3a-94de-4c83-83d3-9e20ae355c23" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_65169319-ed59-4c6f-90e4-69b4ae9fa966" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_8b0ecb3a-94de-4c83-83d3-9e20ae355c23" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_PublicWarrantsMember_85fbe866-e49e-4d03-881a-81037c94f21b" xlink:href="bakkt-20240630.xsd#bakkt_PublicWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_8b0ecb3a-94de-4c83-83d3-9e20ae355c23" xlink:to="loc_bakkt_PublicWarrantsMember_85fbe866-e49e-4d03-881a-81037c94f21b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_1eb59c6d-4864-4ea1-b216-ec5b8dd8278b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueByMeasurementFrequencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_edfc20bb-3bdc-4546-a11f-c45c8bad31b1" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_1eb59c6d-4864-4ea1-b216-ec5b8dd8278b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_1eb59c6d-4864-4ea1-b216-ec5b8dd8278b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_1eb59c6d-4864-4ea1-b216-ec5b8dd8278b" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_1eb59c6d-4864-4ea1-b216-ec5b8dd8278b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_e7dea22e-f075-4c4a-9559-9833bf224f3f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_1eb59c6d-4864-4ea1-b216-ec5b8dd8278b" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_e7dea22e-f075-4c4a-9559-9833bf224f3f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_df9c65eb-2724-4ec3-bf49-efd3ee05a7c7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueMeasurementsRecurringMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_e7dea22e-f075-4c4a-9559-9833bf224f3f" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_df9c65eb-2724-4ec3-bf49-efd3ee05a7c7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_115a4738-d226-48f5-842d-8aa2dd3fdc78" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_edfc20bb-3bdc-4546-a11f-c45c8bad31b1" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_115a4738-d226-48f5-842d-8aa2dd3fdc78" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_115a4738-d226-48f5-842d-8aa2dd3fdc78_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_115a4738-d226-48f5-842d-8aa2dd3fdc78" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_115a4738-d226-48f5-842d-8aa2dd3fdc78_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_5f8b43cd-d0e5-482d-b51e-5e52613ffbbc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_115a4738-d226-48f5-842d-8aa2dd3fdc78" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_5f8b43cd-d0e5-482d-b51e-5e52613ffbbc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_fe610a11-b1b0-4f50-bd93-86ced55cc016" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueInputsLevel1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_5f8b43cd-d0e5-482d-b51e-5e52613ffbbc" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_fe610a11-b1b0-4f50-bd93-86ced55cc016" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_7f86bf88-94ef-4ef6-bcb4-1600a76b681c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueInputsLevel2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_5f8b43cd-d0e5-482d-b51e-5e52613ffbbc" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_7f86bf88-94ef-4ef6-bcb4-1600a76b681c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_1a99e52b-6250-47f1-b541-47907327c3c5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueInputsLevel3Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_5f8b43cd-d0e5-482d-b51e-5e52613ffbbc" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_1a99e52b-6250-47f1-b541-47907327c3c5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_fdd78d13-d52f-454c-a3a2-889afb3ead26" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_edfc20bb-3bdc-4546-a11f-c45c8bad31b1" xlink:to="loc_us-gaap_FinancialInstrumentAxis_fdd78d13-d52f-454c-a3a2-889afb3ead26" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_fdd78d13-d52f-454c-a3a2-889afb3ead26_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancialInstrumentAxis_fdd78d13-d52f-454c-a3a2-889afb3ead26" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_fdd78d13-d52f-454c-a3a2-889afb3ead26_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_889b5c87-8588-432e-baeb-64ab1d68f4be" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancialInstrumentAxis_fdd78d13-d52f-454c-a3a2-889afb3ead26" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_889b5c87-8588-432e-baeb-64ab1d68f4be" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_USTreasuryBondSecuritiesMember_0f47719d-fc58-44fb-af91-c7ed53a6da02" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_USTreasuryBondSecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_889b5c87-8588-432e-baeb-64ab1d68f4be" xlink:to="loc_us-gaap_USTreasuryBondSecuritiesMember_0f47719d-fc58-44fb-af91-c7ed53a6da02" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosureAbstract_3b291338-17c2-4a78-8dec-5e520030dff0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsFairValueDisclosureAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_358bc247-5660-4465-8ba5-2ab2ef0f1c53" xlink:to="loc_us-gaap_AssetsFairValueDisclosureAbstract_3b291338-17c2-4a78-8dec-5e520030dff0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_11807970-ce11-4c36-81f8-f159ca8f4c34" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsFairValueDisclosureAbstract_3b291338-17c2-4a78-8dec-5e520030dff0" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_11807970-ce11-4c36-81f8-f159ca8f4c34" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SafeguardingAssetPlatformOperatorCryptoAsset_5e56e5f5-797a-42a3-94cc-dffb19e561cd" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_SafeguardingAssetPlatformOperatorCryptoAsset"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsFairValueDisclosureAbstract_3b291338-17c2-4a78-8dec-5e520030dff0" xlink:to="loc_srt_SafeguardingAssetPlatformOperatorCryptoAsset_5e56e5f5-797a-42a3-94cc-dffb19e561cd" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_5dcfd76b-63f4-4354-8f07-778a2ae0a5c5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsFairValueDisclosureAbstract_3b291338-17c2-4a78-8dec-5e520030dff0" xlink:to="loc_us-gaap_AssetsFairValueDisclosure_5dcfd76b-63f4-4354-8f07-778a2ae0a5c5" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesFairValueDisclosureAbstract_8b78c0bd-9693-45a9-ada9-9d77ce2227b1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesFairValueDisclosureAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_358bc247-5660-4465-8ba5-2ab2ef0f1c53" xlink:to="loc_us-gaap_LiabilitiesFairValueDisclosureAbstract_8b78c0bd-9693-45a9-ada9-9d77ce2227b1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SafeguardingLiabilityPlatformOperatorCryptoAsset_abb02196-93db-4a4e-b494-c012fc395208" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_SafeguardingLiabilityPlatformOperatorCryptoAsset"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesFairValueDisclosureAbstract_8b78c0bd-9693-45a9-ada9-9d77ce2227b1" xlink:to="loc_srt_SafeguardingLiabilityPlatformOperatorCryptoAsset_abb02196-93db-4a4e-b494-c012fc395208" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContingentConsiderationClassifiedAsEquityFairValueDisclosure_f69e3694-53fb-4bc9-bb0a-d297d98e0346" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ContingentConsiderationClassifiedAsEquityFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesFairValueDisclosureAbstract_8b78c0bd-9693-45a9-ada9-9d77ce2227b1" xlink:to="loc_us-gaap_ContingentConsiderationClassifiedAsEquityFairValueDisclosure_f69e3694-53fb-4bc9-bb0a-d297d98e0346" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_WarrantLiability_c6888b18-2706-46e3-8632-8708cde55bd8" xlink:href="bakkt-20240630.xsd#bakkt_WarrantLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesFairValueDisclosureAbstract_8b78c0bd-9693-45a9-ada9-9d77ce2227b1" xlink:to="loc_bakkt_WarrantLiability_c6888b18-2706-46e3-8632-8708cde55bd8" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesFairValueDisclosure_b30022b3-7b7a-442c-9243-3213d22341a6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesFairValueDisclosureAbstract_8b78c0bd-9693-45a9-ada9-9d77ce2227b1" xlink:to="loc_us-gaap_LiabilitiesFairValueDisclosure_b30022b3-7b7a-442c-9243-3213d22341a6" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.bakkt.com/role/FairValueMeasurementsNarrativeDetails" xlink:type="simple" xlink:href="bakkt-20240630.xsd#FairValueMeasurementsNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/FairValueMeasurementsNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_b4171d3e-9fe8-4561-a159-9e7cd5d4c715" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_f3a77d31-40f7-488a-b29d-fc13bd6ff069" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_b4171d3e-9fe8-4561-a159-9e7cd5d4c715" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_f3a77d31-40f7-488a-b29d-fc13bd6ff069" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_96aacf56-e8b2-491a-9c77-b572c9d91a96" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_f3a77d31-40f7-488a-b29d-fc13bd6ff069" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_96aacf56-e8b2-491a-9c77-b572c9d91a96" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_96aacf56-e8b2-491a-9c77-b572c9d91a96_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_96aacf56-e8b2-491a-9c77-b572c9d91a96" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_96aacf56-e8b2-491a-9c77-b572c9d91a96_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_6e70f39f-358b-46b8-a1dd-769226d353f7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_96aacf56-e8b2-491a-9c77-b572c9d91a96" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_6e70f39f-358b-46b8-a1dd-769226d353f7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_ApexCryptoLLCMember_6e268a1c-63de-4b6b-82cd-83a7b4a8718a" xlink:href="bakkt-20240630.xsd#bakkt_ApexCryptoLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_6e70f39f-358b-46b8-a1dd-769226d353f7" xlink:to="loc_bakkt_ApexCryptoLLCMember_6e268a1c-63de-4b6b-82cd-83a7b4a8718a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_dc39d3bd-0ddd-4f63-8a2e-ecbb6c69ba69" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationContingentConsiderationLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_b4171d3e-9fe8-4561-a159-9e7cd5d4c715" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_dc39d3bd-0ddd-4f63-8a2e-ecbb6c69ba69" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_GrossProfitVolatility_314440c1-53eb-4935-8f22-cc6ffbf81d0c" xlink:href="bakkt-20240630.xsd#bakkt_GrossProfitVolatility"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_b4171d3e-9fe8-4561-a159-9e7cd5d4c715" xlink:to="loc_bakkt_GrossProfitVolatility_314440c1-53eb-4935-8f22-cc6ffbf81d0c" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.bakkt.com/role/FairValueMeasurementsFairValueAssumptionsDetails" xlink:type="simple" xlink:href="bakkt-20240630.xsd#FairValueMeasurementsFairValueAssumptionsDetails"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/FairValueMeasurementsFairValueAssumptionsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_e5297f10-6427-4e20-8900-0aeaab0217ec" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_fea7bb90-71d2-4100-99e2-26a104b1c7d4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_e5297f10-6427-4e20-8900-0aeaab0217ec" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_fea7bb90-71d2-4100-99e2-26a104b1c7d4" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeAxis_4807aa37-71c8-4e51-98c4-61b497300aa5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MeasurementInputTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_fea7bb90-71d2-4100-99e2-26a104b1c7d4" xlink:to="loc_us-gaap_MeasurementInputTypeAxis_4807aa37-71c8-4e51-98c4-61b497300aa5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeDomain_4807aa37-71c8-4e51-98c4-61b497300aa5_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MeasurementInputTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_MeasurementInputTypeAxis_4807aa37-71c8-4e51-98c4-61b497300aa5" xlink:to="loc_us-gaap_MeasurementInputTypeDomain_4807aa37-71c8-4e51-98c4-61b497300aa5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeDomain_2c5c6b01-c1f6-47a2-9991-f0df387b31eb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MeasurementInputTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_MeasurementInputTypeAxis_4807aa37-71c8-4e51-98c4-61b497300aa5" xlink:to="loc_us-gaap_MeasurementInputTypeDomain_2c5c6b01-c1f6-47a2-9991-f0df387b31eb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputExpectedTermMember_e452a280-ded9-49f2-ba1a-96860f77ebfb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MeasurementInputExpectedTermMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_2c5c6b01-c1f6-47a2-9991-f0df387b31eb" xlink:to="loc_us-gaap_MeasurementInputExpectedTermMember_e452a280-ded9-49f2-ba1a-96860f77ebfb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputRiskFreeInterestRateMember_d729576a-b877-4b96-bb4e-cd942f175b48" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MeasurementInputRiskFreeInterestRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_2c5c6b01-c1f6-47a2-9991-f0df387b31eb" xlink:to="loc_us-gaap_MeasurementInputRiskFreeInterestRateMember_d729576a-b877-4b96-bb4e-cd942f175b48" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputPriceVolatilityMember_89b71d92-84c4-4739-b645-fd8b39207ed8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MeasurementInputPriceVolatilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_2c5c6b01-c1f6-47a2-9991-f0df387b31eb" xlink:to="loc_us-gaap_MeasurementInputPriceVolatilityMember_89b71d92-84c4-4739-b645-fd8b39207ed8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_5e5434ae-f504-4d4d-a55a-44d2a3ca7061" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_fea7bb90-71d2-4100-99e2-26a104b1c7d4" xlink:to="loc_srt_RangeAxis_5e5434ae-f504-4d4d-a55a-44d2a3ca7061" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_5e5434ae-f504-4d4d-a55a-44d2a3ca7061_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_5e5434ae-f504-4d4d-a55a-44d2a3ca7061" xlink:to="loc_srt_RangeMember_5e5434ae-f504-4d4d-a55a-44d2a3ca7061_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_b2d765a9-97f9-4af2-9a98-7a64b6ee4ab0" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_5e5434ae-f504-4d4d-a55a-44d2a3ca7061" xlink:to="loc_srt_RangeMember_b2d765a9-97f9-4af2-9a98-7a64b6ee4ab0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_56f26f76-5c47-4f91-8581-308a1d9c5c40" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_b2d765a9-97f9-4af2-9a98-7a64b6ee4ab0" xlink:to="loc_srt_MinimumMember_56f26f76-5c47-4f91-8581-308a1d9c5c40" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_0782f132-b3c5-4881-98fc-881af20f50ef" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_b2d765a9-97f9-4af2-9a98-7a64b6ee4ab0" xlink:to="loc_srt_MaximumMember_0782f132-b3c5-4881-98fc-881af20f50ef" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantsAndRightsOutstandingMeasurementInput_3228a4bf-fbbe-42b3-b00e-d49a8768abca" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_WarrantsAndRightsOutstandingMeasurementInput"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_e5297f10-6427-4e20-8900-0aeaab0217ec" xlink:to="loc_us-gaap_WarrantsAndRightsOutstandingMeasurementInput_3228a4bf-fbbe-42b3-b00e-d49a8768abca" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.bakkt.com/role/LeasesDetails" xlink:type="simple" xlink:href="bakkt-20240630.xsd#LeasesDetails"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/LeasesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionLineItems_1b30b003-91c6-4be2-8d30-95c711cc845a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LesseeLeaseDescriptionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionTable_2f83c667-d4d1-405c-aad6-2951b28e835e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LesseeLeaseDescriptionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_1b30b003-91c6-4be2-8d30-95c711cc845a" xlink:to="loc_us-gaap_LesseeLeaseDescriptionTable_2f83c667-d4d1-405c-aad6-2951b28e835e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_24791ea4-feba-4dca-a264-3eea35059a4f" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_2f83c667-d4d1-405c-aad6-2951b28e835e" xlink:to="loc_srt_RangeAxis_24791ea4-feba-4dca-a264-3eea35059a4f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_24791ea4-feba-4dca-a264-3eea35059a4f_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_24791ea4-feba-4dca-a264-3eea35059a4f" xlink:to="loc_srt_RangeMember_24791ea4-feba-4dca-a264-3eea35059a4f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_242242f4-69c3-4319-a27a-a792811f1b05" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_24791ea4-feba-4dca-a264-3eea35059a4f" xlink:to="loc_srt_RangeMember_242242f4-69c3-4319-a27a-a792811f1b05" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_675717e1-62a3-4b98-b52a-bd4d3885ccf4" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_242242f4-69c3-4319-a27a-a792811f1b05" xlink:to="loc_srt_MinimumMember_675717e1-62a3-4b98-b52a-bd4d3885ccf4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_e5916cc3-9a3d-43b2-a3df-cd0de3304325" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_242242f4-69c3-4319-a27a-a792811f1b05" xlink:to="loc_srt_MaximumMember_e5916cc3-9a3d-43b2-a3df-cd0de3304325" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_0227fbf0-52b6-4edb-b029-259bf83ef551" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_2f83c667-d4d1-405c-aad6-2951b28e835e" xlink:to="loc_srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_0227fbf0-52b6-4edb-b029-259bf83ef551" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MortgageLoansOnRealEstateNamePropertyTypeDomain_0227fbf0-52b6-4edb-b029-259bf83ef551_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MortgageLoansOnRealEstateNamePropertyTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_0227fbf0-52b6-4edb-b029-259bf83ef551" xlink:to="loc_srt_MortgageLoansOnRealEstateNamePropertyTypeDomain_0227fbf0-52b6-4edb-b029-259bf83ef551_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MortgageLoansOnRealEstateNamePropertyTypeDomain_9464dd8b-0072-40bc-abd3-edda49d44efc" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MortgageLoansOnRealEstateNamePropertyTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_0227fbf0-52b6-4edb-b029-259bf83ef551" xlink:to="loc_srt_MortgageLoansOnRealEstateNamePropertyTypeDomain_9464dd8b-0072-40bc-abd3-edda49d44efc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OfficeBuildingMember_2f8ff3aa-b2a5-40b3-81a2-86686a927355" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_OfficeBuildingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_MortgageLoansOnRealEstateNamePropertyTypeDomain_9464dd8b-0072-40bc-abd3-edda49d44efc" xlink:to="loc_srt_OfficeBuildingMember_2f8ff3aa-b2a5-40b3-81a2-86686a927355" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_62f67d08-e7ee-4f6a-838e-fe6bf3a47419" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_2f83c667-d4d1-405c-aad6-2951b28e835e" xlink:to="loc_srt_StatementGeographicalAxis_62f67d08-e7ee-4f6a-838e-fe6bf3a47419" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_62f67d08-e7ee-4f6a-838e-fe6bf3a47419_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_62f67d08-e7ee-4f6a-838e-fe6bf3a47419" xlink:to="loc_srt_SegmentGeographicalDomain_62f67d08-e7ee-4f6a-838e-fe6bf3a47419_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_e9850fb0-7416-47d0-8ca9-0c39675886b1" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_62f67d08-e7ee-4f6a-838e-fe6bf3a47419" xlink:to="loc_srt_SegmentGeographicalDomain_e9850fb0-7416-47d0-8ca9-0c39675886b1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_stpr_AZ_147171a8-46d3-4162-aa83-685073c0b620" xlink:href="https://xbrl.sec.gov/stpr/2024/stpr-2024.xsd#stpr_AZ"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_e9850fb0-7416-47d0-8ca9-0c39675886b1" xlink:to="loc_stpr_AZ_147171a8-46d3-4162-aa83-685073c0b620" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_stpr_NY_aa319ee7-8b37-46dc-a2aa-85663415f10d" xlink:href="https://xbrl.sec.gov/stpr/2024/stpr-2024.xsd#stpr_NY"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_e9850fb0-7416-47d0-8ca9-0c39675886b1" xlink:to="loc_stpr_NY_aa319ee7-8b37-46dc-a2aa-85663415f10d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_stpr_GA_05795236-999c-478a-97a8-c0c9902e1aeb" xlink:href="https://xbrl.sec.gov/stpr/2024/stpr-2024.xsd#stpr_GA"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_e9850fb0-7416-47d0-8ca9-0c39675886b1" xlink:to="loc_stpr_GA_05795236-999c-478a-97a8-c0c9902e1aeb" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseTermOfContract_1cd71f99-a9af-4701-80e8-50dd12abd41f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LesseeOperatingLeaseTermOfContract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_1b30b003-91c6-4be2-8d30-95c711cc845a" xlink:to="loc_us-gaap_LesseeOperatingLeaseTermOfContract_1cd71f99-a9af-4701-80e8-50dd12abd41f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiability_f56e3833-0a63-4ea0-b1f2-ecd6dae4959a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_1b30b003-91c6-4be2-8d30-95c711cc845a" xlink:to="loc_us-gaap_OperatingLeaseLiability_f56e3833-0a63-4ea0-b1f2-ecd6dae4959a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseRemainingLeaseTerm_ea52f345-2f0a-4008-ae51-e983e3cb0f25" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LesseeOperatingLeaseRemainingLeaseTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_1b30b003-91c6-4be2-8d30-95c711cc845a" xlink:to="loc_us-gaap_LesseeOperatingLeaseRemainingLeaseTerm_ea52f345-2f0a-4008-ae51-e983e3cb0f25" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseRenewalTerm_8596348d-550e-40b6-b244-fd0b857171d5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LesseeOperatingLeaseRenewalTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_1b30b003-91c6-4be2-8d30-95c711cc845a" xlink:to="loc_us-gaap_LesseeOperatingLeaseRenewalTerm_8596348d-550e-40b6-b244-fd0b857171d5" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_5be38df9-56f0-4472-a9f0-267bf5cf5558" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_1b30b003-91c6-4be2-8d30-95c711cc845a" xlink:to="loc_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_5be38df9-56f0-4472-a9f0-267bf5cf5558" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_d52f0c1d-694f-4c93-bc9b-f463c14481ca" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_1b30b003-91c6-4be2-8d30-95c711cc845a" xlink:to="loc_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_d52f0c1d-694f-4c93-bc9b-f463c14481ca" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseExpense_bbf7e74e-832f-4c86-8c81-4ae3969b47f7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_1b30b003-91c6-4be2-8d30-95c711cc845a" xlink:to="loc_us-gaap_OperatingLeaseExpense_bbf7e74e-832f-4c86-8c81-4ae3969b47f7" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.bakkt.com/role/SafeguardingObligationForCryptoDetails" xlink:type="simple" xlink:href="bakkt-20240630.xsd#SafeguardingObligationForCryptoDetails"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/SafeguardingObligationForCryptoDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_srt_PlatformOperatorCryptoAssetLineItems_4cee3e9f-157c-4f93-a85c-088b4bf9a82e" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_PlatformOperatorCryptoAssetLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_PlatformOperatorCryptoAssetTable_3a4a4927-d5d9-4975-84e6-01eadb03c6a1" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_PlatformOperatorCryptoAssetTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_srt_PlatformOperatorCryptoAssetLineItems_4cee3e9f-157c-4f93-a85c-088b4bf9a82e" xlink:to="loc_srt_PlatformOperatorCryptoAssetTable_3a4a4927-d5d9-4975-84e6-01eadb03c6a1" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CryptoAssetAxis_a806b955-34c0-4a42-85ca-6c403f51f57d" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_CryptoAssetAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_srt_PlatformOperatorCryptoAssetTable_3a4a4927-d5d9-4975-84e6-01eadb03c6a1" xlink:to="loc_srt_CryptoAssetAxis_a806b955-34c0-4a42-85ca-6c403f51f57d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CryptoAssetDomain_a806b955-34c0-4a42-85ca-6c403f51f57d_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_CryptoAssetDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CryptoAssetAxis_a806b955-34c0-4a42-85ca-6c403f51f57d" xlink:to="loc_srt_CryptoAssetDomain_a806b955-34c0-4a42-85ca-6c403f51f57d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CryptoAssetDomain_0806b60a-e183-4ba6-ba71-68f84ca588f6" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_CryptoAssetDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CryptoAssetAxis_a806b955-34c0-4a42-85ca-6c403f51f57d" xlink:to="loc_srt_CryptoAssetDomain_0806b60a-e183-4ba6-ba71-68f84ca588f6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_BitcoinMember_547df9a5-be28-4d31-8d42-bd44e96024f1" xlink:href="bakkt-20240630.xsd#bakkt_BitcoinMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CryptoAssetDomain_0806b60a-e183-4ba6-ba71-68f84ca588f6" xlink:to="loc_bakkt_BitcoinMember_547df9a5-be28-4d31-8d42-bd44e96024f1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_EtherMember_bdb3553f-5ed0-4291-ad71-e0ab415bf7fc" xlink:href="bakkt-20240630.xsd#bakkt_EtherMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CryptoAssetDomain_0806b60a-e183-4ba6-ba71-68f84ca588f6" xlink:to="loc_bakkt_EtherMember_bdb3553f-5ed0-4291-ad71-e0ab415bf7fc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_ShibaInuMember_20a7ca85-5f6a-416e-9824-8c0d1f841f0a" xlink:href="bakkt-20240630.xsd#bakkt_ShibaInuMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CryptoAssetDomain_0806b60a-e183-4ba6-ba71-68f84ca588f6" xlink:to="loc_bakkt_ShibaInuMember_20a7ca85-5f6a-416e-9824-8c0d1f841f0a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_DogecoinMember_c9e4de55-c6fc-45e9-b2c3-72b876063ee6" xlink:href="bakkt-20240630.xsd#bakkt_DogecoinMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CryptoAssetDomain_0806b60a-e183-4ba6-ba71-68f84ca588f6" xlink:to="loc_bakkt_DogecoinMember_c9e4de55-c6fc-45e9-b2c3-72b876063ee6" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_OtherCryptoAssetsMember_16fccf1e-82c4-4839-bd3f-270d527fbffd" xlink:href="bakkt-20240630.xsd#bakkt_OtherCryptoAssetsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CryptoAssetDomain_0806b60a-e183-4ba6-ba71-68f84ca588f6" xlink:to="loc_bakkt_OtherCryptoAssetsMember_16fccf1e-82c4-4839-bd3f-270d527fbffd" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SafeguardingLiabilityPlatformOperatorCryptoAsset_88230740-9c4f-4e2f-89dd-73061c4e0550" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_SafeguardingLiabilityPlatformOperatorCryptoAsset"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_PlatformOperatorCryptoAssetLineItems_4cee3e9f-157c-4f93-a85c-088b4bf9a82e" xlink:to="loc_srt_SafeguardingLiabilityPlatformOperatorCryptoAsset_88230740-9c4f-4e2f-89dd-73061c4e0550" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SafeguardingAssetPlatformOperatorCryptoAsset_6d123094-82d8-4d49-a390-f66613c74094" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_SafeguardingAssetPlatformOperatorCryptoAsset"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_PlatformOperatorCryptoAssetLineItems_4cee3e9f-157c-4f93-a85c-088b4bf9a82e" xlink:to="loc_srt_SafeguardingAssetPlatformOperatorCryptoAsset_6d123094-82d8-4d49-a390-f66613c74094" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.bakkt.com/role/InvestmentinDebtSecuritiesCostBasisandFairValueofAvailableforSaleDebtSecuritiesDetails" xlink:type="simple" xlink:href="bakkt-20240630.xsd#InvestmentinDebtSecuritiesCostBasisandFairValueofAvailableforSaleDebtSecuritiesDetails"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/InvestmentinDebtSecuritiesCostBasisandFairValueofAvailableforSaleDebtSecuritiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_acf66d10-5e55-4612-b3b4-d0a07d790364" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_bc35ce6a-a98a-4d6e-be2d-92b211801c8e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtSecuritiesAvailableForSaleTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_acf66d10-5e55-4612-b3b4-d0a07d790364" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_bc35ce6a-a98a-4d6e-be2d-92b211801c8e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_18f2d60e-5a2d-4975-bfee-b6d3eaa5adeb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_bc35ce6a-a98a-4d6e-be2d-92b211801c8e" xlink:to="loc_us-gaap_FinancialInstrumentAxis_18f2d60e-5a2d-4975-bfee-b6d3eaa5adeb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_18f2d60e-5a2d-4975-bfee-b6d3eaa5adeb_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancialInstrumentAxis_18f2d60e-5a2d-4975-bfee-b6d3eaa5adeb" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_18f2d60e-5a2d-4975-bfee-b6d3eaa5adeb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_657e44d4-a7c2-4c8c-a13f-43fa61fc06f3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancialInstrumentAxis_18f2d60e-5a2d-4975-bfee-b6d3eaa5adeb" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_657e44d4-a7c2-4c8c-a13f-43fa61fc06f3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_USTreasuryBondSecuritiesMember_185b1cee-90ea-4504-8c1c-7ad97e799382" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_USTreasuryBondSecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_657e44d4-a7c2-4c8c-a13f-43fa61fc06f3" xlink:to="loc_us-gaap_USTreasuryBondSecuritiesMember_185b1cee-90ea-4504-8c1c-7ad97e799382" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss_ae0667e4-f086-4d93-b35d-c27e31711fd2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_acf66d10-5e55-4612-b3b4-d0a07d790364" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss_ae0667e4-f086-4d93-b35d-c27e31711fd2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleAccumulatedGrossUnrealizedGainLossBeforeTax_fafd14c0-b8bb-482c-b3fe-b97843216613" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtSecuritiesAvailableForSaleAccumulatedGrossUnrealizedGainLossBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_acf66d10-5e55-4612-b3b4-d0a07d790364" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleAccumulatedGrossUnrealizedGainLossBeforeTax_fafd14c0-b8bb-482c-b3fe-b97843216613" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_8431a32e-e635-44a1-ba9b-806d56f00097" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_acf66d10-5e55-4612-b3b4-d0a07d790364" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest_8431a32e-e635-44a1-ba9b-806d56f00097" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.bakkt.com/role/SubsequentEventsDetails" xlink:type="simple" xlink:href="bakkt-20240630.xsd#SubsequentEventsDetails"/>
  <link:definitionLink xlink:role="http://www.bakkt.com/role/SubsequentEventsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventLineItems_b300a6b0-5cb0-4c6e-9dec-6925fa09446b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTable_eff0fe4b-d960-4997-8fa2-7e58fb5e9218" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SubsequentEventLineItems_b300a6b0-5cb0-4c6e-9dec-6925fa09446b" xlink:to="loc_us-gaap_SubsequentEventTable_eff0fe4b-d960-4997-8fa2-7e58fb5e9218" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_56b8774d-7555-498b-8d89-7953fdeeb872" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_eff0fe4b-d960-4997-8fa2-7e58fb5e9218" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_56b8774d-7555-498b-8d89-7953fdeeb872" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_56b8774d-7555-498b-8d89-7953fdeeb872_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_56b8774d-7555-498b-8d89-7953fdeeb872" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_56b8774d-7555-498b-8d89-7953fdeeb872_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_04130785-0f9f-4edb-93f5-8beba2d4fcf3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_56b8774d-7555-498b-8d89-7953fdeeb872" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_04130785-0f9f-4edb-93f5-8beba2d4fcf3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_dbb274df-43f8-471e-9132-d8ca7beed071" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_04130785-0f9f-4edb-93f5-8beba2d4fcf3" xlink:to="loc_us-gaap_SubsequentEventMember_dbb274df-43f8-471e-9132-d8ca7beed071" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_b26e56a8-f8e4-4b1b-8f37-dd07413d44c5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_eff0fe4b-d960-4997-8fa2-7e58fb5e9218" xlink:to="loc_us-gaap_DebtInstrumentAxis_b26e56a8-f8e4-4b1b-8f37-dd07413d44c5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_b26e56a8-f8e4-4b1b-8f37-dd07413d44c5_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_b26e56a8-f8e4-4b1b-8f37-dd07413d44c5" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_b26e56a8-f8e4-4b1b-8f37-dd07413d44c5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_d86848fe-a165-4014-ab86-7f2999abe743" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_b26e56a8-f8e4-4b1b-8f37-dd07413d44c5" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_d86848fe-a165-4014-ab86-7f2999abe743" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_ICECreditFacilityMember_37ba4ebf-b594-4a02-84a9-b43160884d12" xlink:href="bakkt-20240630.xsd#bakkt_ICECreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_d86848fe-a165-4014-ab86-7f2999abe743" xlink:to="loc_bakkt_ICECreditFacilityMember_37ba4ebf-b594-4a02-84a9-b43160884d12" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_2f82bd9a-df14-4a98-b310-983ea052eeb8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_eff0fe4b-d960-4997-8fa2-7e58fb5e9218" xlink:to="loc_us-gaap_CreditFacilityAxis_2f82bd9a-df14-4a98-b310-983ea052eeb8" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_2f82bd9a-df14-4a98-b310-983ea052eeb8_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_2f82bd9a-df14-4a98-b310-983ea052eeb8" xlink:to="loc_us-gaap_CreditFacilityDomain_2f82bd9a-df14-4a98-b310-983ea052eeb8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_f1226806-a44e-4a45-aa72-03e4861048ed" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_2f82bd9a-df14-4a98-b310-983ea052eeb8" xlink:to="loc_us-gaap_CreditFacilityDomain_f1226806-a44e-4a45-aa72-03e4861048ed" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_475f7538-2919-4917-9aed-36de259644f3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LineOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_f1226806-a44e-4a45-aa72-03e4861048ed" xlink:to="loc_us-gaap_LineOfCreditMember_475f7538-2919-4917-9aed-36de259644f3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateAxis_d6f560dd-94b5-4688-81fa-f01863a62a47" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_VariableRateAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_eff0fe4b-d960-4997-8fa2-7e58fb5e9218" xlink:to="loc_us-gaap_VariableRateAxis_d6f560dd-94b5-4688-81fa-f01863a62a47" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_d6f560dd-94b5-4688-81fa-f01863a62a47_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_VariableRateAxis_d6f560dd-94b5-4688-81fa-f01863a62a47" xlink:to="loc_us-gaap_VariableRateDomain_d6f560dd-94b5-4688-81fa-f01863a62a47_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_c461efc3-7658-432c-bc3f-159b41cd0b2d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_VariableRateAxis_d6f560dd-94b5-4688-81fa-f01863a62a47" xlink:to="loc_us-gaap_VariableRateDomain_c461efc3-7658-432c-bc3f-159b41cd0b2d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredOvernightFinancingRateSofrMember_b564f09b-4b54-4e5b-ab65-00a9c0960418" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SecuredOvernightFinancingRateSofrMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_c461efc3-7658-432c-bc3f-159b41cd0b2d" xlink:to="loc_us-gaap_SecuredOvernightFinancingRateSofrMember_b564f09b-4b54-4e5b-ab65-00a9c0960418" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrimeRateMember_41a64a23-8c0b-418c-9e04-7fe93a6c7902" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PrimeRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_c461efc3-7658-432c-bc3f-159b41cd0b2d" xlink:to="loc_us-gaap_PrimeRateMember_41a64a23-8c0b-418c-9e04-7fe93a6c7902" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_35ef17b3-b8bf-4600-9708-fa6c2ed8b23d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_b300a6b0-5cb0-4c6e-9dec-6925fa09446b" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_35ef17b3-b8bf-4600-9708-fa6c2ed8b23d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_ba561448-7dff-49dc-bcea-a23bad26bcfc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_b300a6b0-5cb0-4c6e-9dec-6925fa09446b" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_ba561448-7dff-49dc-bcea-a23bad26bcfc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_DebtInstrumentAnnualIncreaseInInterestWhenInterestIsElectedToBePaidInKind_4ec30e87-7267-4ccf-9472-0517437976fb" xlink:href="bakkt-20240630.xsd#bakkt_DebtInstrumentAnnualIncreaseInInterestWhenInterestIsElectedToBePaidInKind"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_b300a6b0-5cb0-4c6e-9dec-6925fa09446b" xlink:to="loc_bakkt_DebtInstrumentAnnualIncreaseInInterestWhenInterestIsElectedToBePaidInKind_4ec30e87-7267-4ccf-9472-0517437976fb" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_DebtInstrumentInterestRateInEventOfDefault_1de63ac0-d199-463a-aabf-266246aaa099" xlink:href="bakkt-20240630.xsd#bakkt_DebtInstrumentInterestRateInEventOfDefault"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_b300a6b0-5cb0-4c6e-9dec-6925fa09446b" xlink:to="loc_bakkt_DebtInstrumentInterestRateInEventOfDefault_1de63ac0-d199-463a-aabf-266246aaa099" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_9a157d26-167d-4988-b01e-bd92c6b21b3f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_b300a6b0-5cb0-4c6e-9dec-6925fa09446b" xlink:to="loc_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_9a157d26-167d-4988-b01e-bd92c6b21b3f" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://xbrl.sec.gov/ecd/AwardTypeOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#AwardTypeOnly"/>
  <link:definitionLink xlink:role="http://xbrl.sec.gov/ecd/AwardTypeOnly" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_PerformanceStockUnitsPSUsMember_67bc43d3-9ecb-41f7-a8d7-b2a3fb70020a" xlink:href="bakkt-20240630.xsd#bakkt_PerformanceStockUnitsPSUsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_bakkt_PerformanceStockUnitsPSUsMember_67bc43d3-9ecb-41f7-a8d7-b2a3fb70020a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_RestrictedStockUnitsRSUsAndPerformanceStockUnitsPSUsMember_ef991791-47ae-4e8d-bd2f-479ddada4915" xlink:href="bakkt-20240630.xsd#bakkt_RestrictedStockUnitsRSUsAndPerformanceStockUnitsPSUsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_bakkt_RestrictedStockUnitsRSUsAndPerformanceStockUnitsPSUsMember_ef991791-47ae-4e8d-bd2f-479ddada4915" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_PreferredIncentiveUnitsMember_404b8c25-946c-415e-8bdb-9e2259101d65" xlink:href="bakkt-20240630.xsd#bakkt_PreferredIncentiveUnitsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_bakkt_PreferredIncentiveUnitsMember_404b8c25-946c-415e-8bdb-9e2259101d65" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_bakkt_CommonIncentiveUnitsMember_a8fecf0c-3330-4bc6-a803-95ef9aca3e4c" xlink:href="bakkt-20240630.xsd#bakkt_CommonIncentiveUnitsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_bakkt_CommonIncentiveUnitsMember_a8fecf0c-3330-4bc6-a803-95ef9aca3e4c" xlink:type="arc" order="7"/>
  </link:definitionLink>
</link:linkbase>
