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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019c67c2-2e3f-7a4a-b265-1c2a9c6ef9da,g:0d1b5536-d6b4-4a12-a79a-6c7c4fc7f5a5-->
<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.originmaterials.com/role/Cover" xlink:type="simple" xlink:href="orgn-20260304.xsd#Cover"/>
  <link:definitionLink xlink:role="http://www.originmaterials.com/role/Cover" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationLineItems_019c67c2-2e3f-7473-9ced-c2b5ca0c100a" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationTable_019c67c2-2e3f-79a1-8569-198c373d18df" 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_019c67c2-2e3f-7473-9ced-c2b5ca0c100a" xlink:to="loc_dei_DocumentInformationTable_019c67c2-2e3f-79a1-8569-198c373d18df" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_019c67c2-2e3f-7a06-905e-dc72f860f1ec" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_DocumentInformationTable_019c67c2-2e3f-79a1-8569-198c373d18df" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_019c67c2-2e3f-7a06-905e-dc72f860f1ec" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019c67c2-2e3f-7a06-905e-dc72f860f1ec_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019c67c2-2e3f-7a06-905e-dc72f860f1ec" xlink:to="loc_us-gaap_EquityComponentDomain_019c67c2-2e3f-7a06-905e-dc72f860f1ec_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019c67c2-2e3f-7da4-b8e6-5c7399d13c43" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019c67c2-2e3f-7a06-905e-dc72f860f1ec" xlink:to="loc_us-gaap_EquityComponentDomain_019c67c2-2e3f-7da4-b8e6-5c7399d13c43" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantMember_019c67c2-2e3f-7d34-8209-c7aafd29ed81" 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_EquityComponentDomain_019c67c2-2e3f-7da4-b8e6-5c7399d13c43" xlink:to="loc_us-gaap_WarrantMember_019c67c2-2e3f-7d34-8209-c7aafd29ed81" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_019c67c2-2e3f-7e13-8cfe-f577065864fb" 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_019c67c2-2e3f-7473-9ced-c2b5ca0c100a" xlink:to="loc_dei_DocumentType_019c67c2-2e3f-7e13-8cfe-f577065864fb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_019c67c2-2e3f-7337-afd4-ad62972cf7af" 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_019c67c2-2e3f-7473-9ced-c2b5ca0c100a" xlink:to="loc_dei_EntityRegistrantName_019c67c2-2e3f-7337-afd4-ad62972cf7af" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_019c67c2-2e3f-7d73-b1be-2afe7014a676" 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_019c67c2-2e3f-7473-9ced-c2b5ca0c100a" xlink:to="loc_dei_EntityIncorporationStateCountryCode_019c67c2-2e3f-7d73-b1be-2afe7014a676" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_019c67c2-2e3f-7e93-949b-7ac43c653622" 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_019c67c2-2e3f-7473-9ced-c2b5ca0c100a" xlink:to="loc_dei_EntityFileNumber_019c67c2-2e3f-7e93-949b-7ac43c653622" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_019c67c2-2e3f-7920-a030-b3b17f8c0fec" 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_019c67c2-2e3f-7473-9ced-c2b5ca0c100a" xlink:to="loc_dei_EntityTaxIdentificationNumber_019c67c2-2e3f-7920-a030-b3b17f8c0fec" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_019c67c2-2e3f-737a-9cb4-3a69f02cf52d" 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_019c67c2-2e3f-7473-9ced-c2b5ca0c100a" xlink:to="loc_dei_EntityAddressAddressLine1_019c67c2-2e3f-737a-9cb4-3a69f02cf52d" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine2_019c67c2-2e3f-704d-811d-392eb6c065a9" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressAddressLine2"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019c67c2-2e3f-7473-9ced-c2b5ca0c100a" xlink:to="loc_dei_EntityAddressAddressLine2_019c67c2-2e3f-704d-811d-392eb6c065a9" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_019c67c2-2e3f-75a1-9c28-bc18490cd6c5" 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_019c67c2-2e3f-7473-9ced-c2b5ca0c100a" xlink:to="loc_dei_EntityAddressStateOrProvince_019c67c2-2e3f-75a1-9c28-bc18490cd6c5" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_019c67c2-2e3f-7e8b-9109-a2da56014cd5" 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_019c67c2-2e3f-7473-9ced-c2b5ca0c100a" xlink:to="loc_dei_EntityAddressCityOrTown_019c67c2-2e3f-7e8b-9109-a2da56014cd5" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_019c67c2-2e3f-7fac-9e64-9c0bb95d2e5f" 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_019c67c2-2e3f-7473-9ced-c2b5ca0c100a" xlink:to="loc_dei_EntityAddressPostalZipCode_019c67c2-2e3f-7fac-9e64-9c0bb95d2e5f" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_019c67c2-2e3f-77fb-be85-de3abd2d7ada" 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_019c67c2-2e3f-7473-9ced-c2b5ca0c100a" xlink:to="loc_dei_CityAreaCode_019c67c2-2e3f-77fb-be85-de3abd2d7ada" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_019c67c2-2e3f-7527-9b1d-bc94b8c18aec" 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_019c67c2-2e3f-7473-9ced-c2b5ca0c100a" xlink:to="loc_dei_LocalPhoneNumber_019c67c2-2e3f-7527-9b1d-bc94b8c18aec" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_019c67c2-2e3f-7474-bd1b-406963a36989" 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_019c67c2-2e3f-7473-9ced-c2b5ca0c100a" xlink:to="loc_dei_WrittenCommunications_019c67c2-2e3f-7474-bd1b-406963a36989" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_019c67c2-2e3f-7bfb-a4be-aa1fe9cb1434" 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_019c67c2-2e3f-7473-9ced-c2b5ca0c100a" xlink:to="loc_dei_SolicitingMaterial_019c67c2-2e3f-7bfb-a4be-aa1fe9cb1434" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_019c67c2-2e3f-74da-9d7b-95330d0b92a2" 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_019c67c2-2e3f-7473-9ced-c2b5ca0c100a" xlink:to="loc_dei_PreCommencementTenderOffer_019c67c2-2e3f-74da-9d7b-95330d0b92a2" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_019c67c2-2e3f-7ef8-b0ac-28092841192d" 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_019c67c2-2e3f-7473-9ced-c2b5ca0c100a" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_019c67c2-2e3f-7ef8-b0ac-28092841192d" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_019c67c2-2e3f-7204-bf56-b8e4064582ed" 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_019c67c2-2e3f-7473-9ced-c2b5ca0c100a" xlink:to="loc_dei_Security12bTitle_019c67c2-2e3f-7204-bf56-b8e4064582ed" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_019c67c2-2e3f-7925-b4ed-b9b93570915c" 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_019c67c2-2e3f-7473-9ced-c2b5ca0c100a" xlink:to="loc_dei_TradingSymbol_019c67c2-2e3f-7925-b4ed-b9b93570915c" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_019c67c2-2e3f-7b2d-b078-74294e42be04" 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_019c67c2-2e3f-7473-9ced-c2b5ca0c100a" xlink:to="loc_dei_SecurityExchangeName_019c67c2-2e3f-7b2d-b078-74294e42be04" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_019c67c2-2e3f-74c4-949c-0bccd8bacbe7" 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_019c67c2-2e3f-7473-9ced-c2b5ca0c100a" xlink:to="loc_dei_EntityEmergingGrowthCompany_019c67c2-2e3f-74c4-949c-0bccd8bacbe7" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_019c67c2-2e3f-702f-a075-0508602f46fb" 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_019c67c2-2e3f-7473-9ced-c2b5ca0c100a" xlink:to="loc_dei_EntityCentralIndexKey_019c67c2-2e3f-702f-a075-0508602f46fb" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_019c67c2-2e3f-77fb-b59c-d1e65c733ca0" 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_019c67c2-2e3f-7473-9ced-c2b5ca0c100a" xlink:to="loc_dei_AmendmentFlag_019c67c2-2e3f-77fb-b59c-d1e65c733ca0" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_019c67c2-2e3f-7d6b-9bcb-fc38f0682f83" 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_019c67c2-2e3f-7473-9ced-c2b5ca0c100a" xlink:to="loc_dei_DocumentPeriodEndDate_019c67c2-2e3f-7d6b-9bcb-fc38f0682f83" xlink:type="arc" order="22"/>
  </link:definitionLink>
</link:linkbase>
