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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:01a0674e-1109-7446-8da1-41d8fdd7f532,g:0948fa45-311c-4be5-b3d8-e43a17853473-->
<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://satellogic.com/role/Cover" xlink:type="simple" xlink:href="satl-20260904.xsd#Cover"/>
  <link:definitionLink xlink:role="http://satellogic.com/role/Cover" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationLineItems_01a0674e-1109-7774-bde0-346b8aa8aead" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationTable_01a0674e-1109-7119-95d8-e38f0c0c1253" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentInformationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_dei_DocumentInformationLineItems_01a0674e-1109-7774-bde0-346b8aa8aead" xlink:to="loc_dei_DocumentInformationTable_01a0674e-1109-7119-95d8-e38f0c0c1253" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_01a0674e-1109-71f9-9037-7e148f583803" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_DocumentInformationTable_01a0674e-1109-7119-95d8-e38f0c0c1253" xlink:to="loc_us-gaap_StatementClassOfStockAxis_01a0674e-1109-71f9-9037-7e148f583803" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_01a0674e-1109-71f9-9037-7e148f583803_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_01a0674e-1109-71f9-9037-7e148f583803" xlink:to="loc_us-gaap_ClassOfStockDomain_01a0674e-1109-71f9-9037-7e148f583803_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_01a0674e-1109-7b8e-b314-a07483859737" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_01a0674e-1109-71f9-9037-7e148f583803" xlink:to="loc_us-gaap_ClassOfStockDomain_01a0674e-1109-7b8e-b314-a07483859737" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonClassAMember_01a0674e-1109-7e34-aa10-ce4ae057e55b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonClassAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_01a0674e-1109-7b8e-b314-a07483859737" xlink:to="loc_us-gaap_CommonClassAMember_01a0674e-1109-7e34-aa10-ce4ae057e55b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantMember_01a0674e-1109-7339-9e95-e704971432bf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_01a0674e-1109-7b8e-b314-a07483859737" xlink:to="loc_us-gaap_WarrantMember_01a0674e-1109-7339-9e95-e704971432bf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_01a0674e-1109-7e7b-8ca4-4940a7fe78cd" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentType"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a0674e-1109-7774-bde0-346b8aa8aead" xlink:to="loc_dei_DocumentType_01a0674e-1109-7e7b-8ca4-4940a7fe78cd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_01a0674e-1109-76d9-a067-ce7cfee9ef05" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentPeriodEndDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a0674e-1109-7774-bde0-346b8aa8aead" xlink:to="loc_dei_DocumentPeriodEndDate_01a0674e-1109-76d9-a067-ce7cfee9ef05" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_01a0674e-1109-76fc-b327-cf93327df54a" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityRegistrantName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a0674e-1109-7774-bde0-346b8aa8aead" xlink:to="loc_dei_EntityRegistrantName_01a0674e-1109-76fc-b327-cf93327df54a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_01a0674e-1109-7db7-bc89-c0a0e94163d5" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a0674e-1109-7774-bde0-346b8aa8aead" xlink:to="loc_dei_EntityIncorporationStateCountryCode_01a0674e-1109-7db7-bc89-c0a0e94163d5" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_01a0674e-1109-79f8-8871-5fa898c8562b" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityFileNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a0674e-1109-7774-bde0-346b8aa8aead" xlink:to="loc_dei_EntityFileNumber_01a0674e-1109-79f8-8871-5fa898c8562b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_01a0674e-1109-7cba-a01c-8d0970bf128d" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a0674e-1109-7774-bde0-346b8aa8aead" xlink:to="loc_dei_EntityTaxIdentificationNumber_01a0674e-1109-7cba-a01c-8d0970bf128d" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_01a0674e-1109-788f-8155-cbc849c5d3dd" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressAddressLine1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a0674e-1109-7774-bde0-346b8aa8aead" xlink:to="loc_dei_EntityAddressAddressLine1_01a0674e-1109-788f-8155-cbc849c5d3dd" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_01a0674e-1109-78c1-bce4-9c6f45b01f60" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressCityOrTown"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a0674e-1109-7774-bde0-346b8aa8aead" xlink:to="loc_dei_EntityAddressCityOrTown_01a0674e-1109-78c1-bce4-9c6f45b01f60" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_01a0674e-1109-7165-9532-9ae3a6d074de" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressStateOrProvince"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a0674e-1109-7774-bde0-346b8aa8aead" xlink:to="loc_dei_EntityAddressStateOrProvince_01a0674e-1109-7165-9532-9ae3a6d074de" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_01a0674e-1109-7fd8-98e6-dbc5fb12e610" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressPostalZipCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a0674e-1109-7774-bde0-346b8aa8aead" xlink:to="loc_dei_EntityAddressPostalZipCode_01a0674e-1109-7fd8-98e6-dbc5fb12e610" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_01a0674e-1109-7177-9dc6-a4ba0931dd38" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CityAreaCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a0674e-1109-7774-bde0-346b8aa8aead" xlink:to="loc_dei_CityAreaCode_01a0674e-1109-7177-9dc6-a4ba0931dd38" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_01a0674e-1109-7cec-afae-7ce18067913d" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LocalPhoneNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a0674e-1109-7774-bde0-346b8aa8aead" xlink:to="loc_dei_LocalPhoneNumber_01a0674e-1109-7cec-afae-7ce18067913d" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_01a0674e-1109-7a3e-8b13-4c1accfc58e5" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_Security12bTitle"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a0674e-1109-7774-bde0-346b8aa8aead" xlink:to="loc_dei_Security12bTitle_01a0674e-1109-7a3e-8b13-4c1accfc58e5" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_01a0674e-1109-717b-a06c-28406db374e6" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_TradingSymbol"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a0674e-1109-7774-bde0-346b8aa8aead" xlink:to="loc_dei_TradingSymbol_01a0674e-1109-717b-a06c-28406db374e6" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_01a0674e-1109-752d-ad4d-603a30408ecc" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_SecurityExchangeName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a0674e-1109-7774-bde0-346b8aa8aead" xlink:to="loc_dei_SecurityExchangeName_01a0674e-1109-752d-ad4d-603a30408ecc" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_01a0674e-1109-7ab9-b02f-48c6895ed18d" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_WrittenCommunications"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a0674e-1109-7774-bde0-346b8aa8aead" xlink:to="loc_dei_WrittenCommunications_01a0674e-1109-7ab9-b02f-48c6895ed18d" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_01a0674e-1109-7161-83d4-35a8be371bcd" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_SolicitingMaterial"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a0674e-1109-7774-bde0-346b8aa8aead" xlink:to="loc_dei_SolicitingMaterial_01a0674e-1109-7161-83d4-35a8be371bcd" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_01a0674e-1109-7942-bb17-7f97463d91b1" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_PreCommencementTenderOffer"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a0674e-1109-7774-bde0-346b8aa8aead" xlink:to="loc_dei_PreCommencementTenderOffer_01a0674e-1109-7942-bb17-7f97463d91b1" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_01a0674e-1109-7484-9819-6dd2c306a420" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a0674e-1109-7774-bde0-346b8aa8aead" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_01a0674e-1109-7484-9819-6dd2c306a420" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_01a0674e-1109-79c2-99ea-18ae43d612bc" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a0674e-1109-7774-bde0-346b8aa8aead" xlink:to="loc_dei_EntityEmergingGrowthCompany_01a0674e-1109-79c2-99ea-18ae43d612bc" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityExTransitionPeriod_01a0674e-1109-7c6e-9c60-68efabb28700" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityExTransitionPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a0674e-1109-7774-bde0-346b8aa8aead" xlink:to="loc_dei_EntityExTransitionPeriod_01a0674e-1109-7c6e-9c60-68efabb28700" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_01a0674e-1109-79c3-8feb-7c01f868694b" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCentralIndexKey"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a0674e-1109-7774-bde0-346b8aa8aead" xlink:to="loc_dei_EntityCentralIndexKey_01a0674e-1109-79c3-8feb-7c01f868694b" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_01a0674e-1109-7090-9a81-2414ec86f5b2" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AmendmentFlag"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_01a0674e-1109-7774-bde0-346b8aa8aead" xlink:to="loc_dei_AmendmentFlag_01a0674e-1109-7090-9a81-2414ec86f5b2" xlink:type="arc" order="22"/>
  </link:definitionLink>
</link:linkbase>
