<?xml version="1.0"?>
<edgarSubmission>

    <schemaVersion>X0603</schemaVersion>

    <submissionType>D/A</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001474721</cik>
        <entityName>TCW Special Mortgage Credits Fund III (Cayman), L.P.</entityName>
        <issuerAddress>
            <street1>865 SOUTH FIGUEROA STREET</street1>
            <street2>SUITE 1800</street2>
            <city>LOS ANGELES</city>
            <stateOrCountry>CA</stateOrCountry>
            <zipCode>90017</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>213-244-0000</issuerPhoneNumber>
        <jurisdictionOfInc>CAYMAN ISLANDS</jurisdictionOfInc>
        <issuerPreviousNameList>
            <value>None</value>
        </issuerPreviousNameList>
        <edgarPreviousNameList>
            <value>None</value>
        </edgarPreviousNameList>
        <entityType>Limited Partnership</entityType>
        <yearOfInc>
            <withinFiveYears>true</withinFiveYears>
            <value>2009</value>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Jeffrey</firstName>
                <middleName>E.</middleName>
                <lastName>Gundlach</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>865 South Figueroa Street</street1>
                <street2>Suite 1800</street2>
                <city>Los Angeles</city>
                <stateOrCountry>CA</stateOrCountry>
                <zipCode>90017</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>General Partner</firstName>
                <lastName>TCW Asset Management Company International Ltd.</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>865 South Figueroa Street</street1>
                <street2>Suite 1800</street2>
                <city>Los Angeles</city>
                <stateOrCountry>CA</stateOrCountry>
                <zipCode>90017</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Philip</firstName>
                <lastName>Barach</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>865 South Figueroa Street</street1>
                <street2>Suite 1800</street2>
                <city>Los Angeles</city>
                <stateOrCountry>CA</stateOrCountry>
                <zipCode>90017</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Joel</firstName>
                <lastName>Damaini</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>865 South Figueroa Street</street1>
                <street2>Suite 1800</street2>
                <city>Los Angeles</city>
                <stateOrCountry>CA</stateOrCountry>
                <zipCode>90017</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Vincent</firstName>
                <lastName>Fiorillo</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>865 South Figueroa Street</street1>
                <street2>Suite 1800</street2>
                <city>Los Angeles</city>
                <stateOrCountry>CO</stateOrCountry>
                <zipCode>90017</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Joseph</firstName>
                <lastName>Galligon</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>865 South Figueroa Street</street1>
                <street2>Suite 1800</street2>
                <city>Los Angeles</city>
                <stateOrCountry>CA</stateOrCountry>
                <zipCode>90017</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Louis</firstName>
                <lastName>Lucido</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>865 South Figueroa Street</street1>
                <street2>Suite 1800</street2>
                <city>Los Angeles</city>
                <stateOrCountry>CA</stateOrCountry>
                <zipCode>90017</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Investing</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06</item>
            <item>3C</item>
            <item>3C.7</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>true</isAmendment>
                <previousAccessionNumber>0001474723-09-000003</previousAccessionNumber>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2009-09-30</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isPooledInvestmentFundType>true</isPooledInvestmentFundType>
            <isOtherType>true</isOtherType>
            <descriptionOfOtherType>Limited Partnership Interests</descriptionOfOtherType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>1000000</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>1111111111</totalOfferingAmount>
            <totalAmountSold>461600000</totalAmountSold>
            <totalRemaining>649511111</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>38</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
            </grossProceedsUsed>
            <clarificationOfResponse></clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>TCW Special Mortgage Credits Fund III (Cayman), L.P.</issuerName>
                <signatureName>/s/ Sean Plater</signatureName>
                <nameOfSigner>Sean Plater</nameOfSigner>
                <signatureTitle>Senior Vice President of the General Partner</signatureTitle>
                <signatureDate>2009-11-30</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
