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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2025 Workiva-->
<!--r:09091875-db41-4e3e-a188-c648e30f2398,g:b423b1c5-0a49-438f-94d3-eabb2c8ab00b-->
<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" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.capitalsouthwest.com/role/Cover" xlink:type="simple" xlink:href="cswc-20250806.xsd#Cover"/>
  <link:presentationLink xlink:role="http://www.capitalsouthwest.com/role/Cover" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_CoverAbstract_194a7b79-e3ae-4719-ad92-f6e142d2ca2a" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CoverAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationTable_ae33d0c1-f1ef-4eec-b80d-70127aa7585c" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentInformationTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_194a7b79-e3ae-4719-ad92-f6e142d2ca2a" xlink:to="loc_dei_DocumentInformationTable_ae33d0c1-f1ef-4eec-b80d-70127aa7585c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_84faac44-3130-4caa-a84a-4a0019be9765" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationTable_ae33d0c1-f1ef-4eec-b80d-70127aa7585c" xlink:to="loc_us-gaap_StatementClassOfStockAxis_84faac44-3130-4caa-a84a-4a0019be9765" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_cc4bb30e-86c6-446a-b680-2f5d3dffb665" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_84faac44-3130-4caa-a84a-4a0019be9765" xlink:to="loc_us-gaap_ClassOfStockDomain_cc4bb30e-86c6-446a-b680-2f5d3dffb665" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MediumTermNotesMember_d8bcca39-2d25-4bbd-abbd-76fa8d43d53d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MediumTermNotesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_cc4bb30e-86c6-446a-b680-2f5d3dffb665" xlink:to="loc_us-gaap_MediumTermNotesMember_d8bcca39-2d25-4bbd-abbd-76fa8d43d53d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_5d5ddcea-16ab-4df7-b68d-b07dce852a5c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockDomain_cc4bb30e-86c6-446a-b680-2f5d3dffb665" xlink:to="loc_us-gaap_CommonStockMember_5d5ddcea-16ab-4df7-b68d-b07dce852a5c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationLineItems_91d3901b-3c85-4098-acd5-8aa097a8b6a6" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentInformationLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationTable_ae33d0c1-f1ef-4eec-b80d-70127aa7585c" xlink:to="loc_dei_DocumentInformationLineItems_91d3901b-3c85-4098-acd5-8aa097a8b6a6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_96f8f87d-2235-420d-a7bf-ff25ffc36ece" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentType"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_91d3901b-3c85-4098-acd5-8aa097a8b6a6" xlink:to="loc_dei_DocumentType_96f8f87d-2235-420d-a7bf-ff25ffc36ece" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_542c141b-459d-4d74-a3b4-3ae69b659639" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentPeriodEndDate"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_91d3901b-3c85-4098-acd5-8aa097a8b6a6" xlink:to="loc_dei_DocumentPeriodEndDate_542c141b-459d-4d74-a3b4-3ae69b659639" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_816ac99c-d9cf-4843-92d2-c409ce265c4f" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityRegistrantName"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_91d3901b-3c85-4098-acd5-8aa097a8b6a6" xlink:to="loc_dei_EntityRegistrantName_816ac99c-d9cf-4843-92d2-c409ce265c4f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_57ac3296-6cc0-4530-9e67-e134af479053" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_91d3901b-3c85-4098-acd5-8aa097a8b6a6" xlink:to="loc_dei_EntityIncorporationStateCountryCode_57ac3296-6cc0-4530-9e67-e134af479053" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_9322b3dc-1c12-4be1-8499-c9e3009625a0" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityFileNumber"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_91d3901b-3c85-4098-acd5-8aa097a8b6a6" xlink:to="loc_dei_EntityFileNumber_9322b3dc-1c12-4be1-8499-c9e3009625a0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_1f2aa131-e6cc-4b01-8580-3582686b43e3" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_91d3901b-3c85-4098-acd5-8aa097a8b6a6" xlink:to="loc_dei_EntityTaxIdentificationNumber_1f2aa131-e6cc-4b01-8580-3582686b43e3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_8c575a5e-6e07-420b-bdc3-2fcf24851248" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressAddressLine1"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_91d3901b-3c85-4098-acd5-8aa097a8b6a6" xlink:to="loc_dei_EntityAddressAddressLine1_8c575a5e-6e07-420b-bdc3-2fcf24851248" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine2_c8de42e4-195b-4b37-9b22-34e05ea3fea5" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressAddressLine2"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_91d3901b-3c85-4098-acd5-8aa097a8b6a6" xlink:to="loc_dei_EntityAddressAddressLine2_c8de42e4-195b-4b37-9b22-34e05ea3fea5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_0c89fcc4-bc29-466b-9996-1300f99b11cf" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressCityOrTown"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_91d3901b-3c85-4098-acd5-8aa097a8b6a6" xlink:to="loc_dei_EntityAddressCityOrTown_0c89fcc4-bc29-466b-9996-1300f99b11cf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_fd506958-0e26-4358-8e86-f4e7c5b7681e" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressStateOrProvince"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_91d3901b-3c85-4098-acd5-8aa097a8b6a6" xlink:to="loc_dei_EntityAddressStateOrProvince_fd506958-0e26-4358-8e86-f4e7c5b7681e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_df8c8562-9285-44ed-8555-d99b65352b3d" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressPostalZipCode"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_91d3901b-3c85-4098-acd5-8aa097a8b6a6" xlink:to="loc_dei_EntityAddressPostalZipCode_df8c8562-9285-44ed-8555-d99b65352b3d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_61ff9b60-466b-4b9a-b32d-0f51c788a883" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CityAreaCode"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_91d3901b-3c85-4098-acd5-8aa097a8b6a6" xlink:to="loc_dei_CityAreaCode_61ff9b60-466b-4b9a-b32d-0f51c788a883" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_3b5cf994-785d-4493-ab55-428ed646af93" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LocalPhoneNumber"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_91d3901b-3c85-4098-acd5-8aa097a8b6a6" xlink:to="loc_dei_LocalPhoneNumber_3b5cf994-785d-4493-ab55-428ed646af93" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_0e82a152-e9d2-40a6-95e7-7771a527d23b" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_WrittenCommunications"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_91d3901b-3c85-4098-acd5-8aa097a8b6a6" xlink:to="loc_dei_WrittenCommunications_0e82a152-e9d2-40a6-95e7-7771a527d23b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_48bd9a2a-039a-427b-97d4-30a2e3c3f7f0" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_SolicitingMaterial"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_91d3901b-3c85-4098-acd5-8aa097a8b6a6" xlink:to="loc_dei_SolicitingMaterial_48bd9a2a-039a-427b-97d4-30a2e3c3f7f0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_19e15d24-09b2-4b94-bd4c-1ae3f7433299" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_PreCommencementTenderOffer"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_91d3901b-3c85-4098-acd5-8aa097a8b6a6" xlink:to="loc_dei_PreCommencementTenderOffer_19e15d24-09b2-4b94-bd4c-1ae3f7433299" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_71b6567e-663a-4ee1-88bd-652c5f23d707" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_91d3901b-3c85-4098-acd5-8aa097a8b6a6" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_71b6567e-663a-4ee1-88bd-652c5f23d707" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_f5a05d51-4803-40b7-9481-de37ffbc24f9" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_Security12bTitle"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_91d3901b-3c85-4098-acd5-8aa097a8b6a6" xlink:to="loc_dei_Security12bTitle_f5a05d51-4803-40b7-9481-de37ffbc24f9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_87603d1c-e79d-41cb-b090-e40e87bed96a" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_TradingSymbol"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_91d3901b-3c85-4098-acd5-8aa097a8b6a6" xlink:to="loc_dei_TradingSymbol_87603d1c-e79d-41cb-b090-e40e87bed96a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_32f8567f-0c58-4da0-a0f6-d76314b5a36d" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_SecurityExchangeName"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_91d3901b-3c85-4098-acd5-8aa097a8b6a6" xlink:to="loc_dei_SecurityExchangeName_32f8567f-0c58-4da0-a0f6-d76314b5a36d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_ea6284bb-ac02-462a-bd57-f2669e2d0298" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_91d3901b-3c85-4098-acd5-8aa097a8b6a6" xlink:to="loc_dei_EntityEmergingGrowthCompany_ea6284bb-ac02-462a-bd57-f2669e2d0298" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_2a18264a-b8ef-4803-9b6a-6f965c3545a5" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCentralIndexKey"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_91d3901b-3c85-4098-acd5-8aa097a8b6a6" xlink:to="loc_dei_EntityCentralIndexKey_2a18264a-b8ef-4803-9b6a-6f965c3545a5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_4ada8c49-850d-4d74-8307-e07daa1915cc" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AmendmentFlag"/>
    <link:presentationArc order="23" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_91d3901b-3c85-4098-acd5-8aa097a8b6a6" xlink:to="loc_dei_AmendmentFlag_4ada8c49-850d-4d74-8307-e07daa1915cc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
</link:linkbase>
