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

    <schemaVersion>X0704</schemaVersion>

    <submissionType>D/A</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001419747</cik>
        <entityName>Tree Line Asia US Feeder Fund</entityName>
        <issuerAddress>
            <street1>Suite 1707, Two Exchange Sqaure</street1>
            <street2>8 Connaught Place</street2>
            <city>Central</city>
            <stateOrCountry>K3</stateOrCountry>
            <stateOrCountryDescription>HONG KONG</stateOrCountryDescription>
            <zipCode>00000</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>852.2106.0188</issuerPhoneNumber>
        <jurisdictionOfInc>CAYMAN ISLANDS</jurisdictionOfInc>
        <issuerPreviousNameList>
            <value>None</value>
        </issuerPreviousNameList>
        <edgarPreviousNameList>
            <value>None</value>
        </edgarPreviousNameList>
        <entityType>Other</entityType>
        <entityTypeOtherDesc>Exempted Company</entityTypeOtherDesc>
        <yearOfInc>
            <withinFiveYears>true</withinFiveYears>
            <value>2006</value>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Zaheer</firstName>
                <middleName>Abbas</middleName>
                <lastName>Sitabkhan</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>Suite 1707, Two Exchange Square</street1>
                <street2>8 Connaught Place</street2>
                <city>Central</city>
                <stateOrCountry>K3</stateOrCountry>
                <stateOrCountryDescription>HONG KONG</stateOrCountryDescription>
                <zipCode>00000</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Arthur</firstName>
                <middleName>JK</middleName>
                <lastName>Stubbs</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>Level 11</street1>
                <street2>22 Fanshawe Street</street2>
                <city>Auckland</city>
                <stateOrCountry>Q2</stateOrCountry>
                <stateOrCountryDescription>NEW ZEALAND</stateOrCountryDescription>
                <zipCode>1142</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Adam</firstName>
                <middleName>A</middleName>
                <lastName>Le Mesurier</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>111B Amoy Street</street1>
                <street2>Level 3</street2>
                <city>Singapore</city>
                <stateOrCountry>U0</stateOrCountry>
                <stateOrCountryDescription>SINGAPORE</stateOrCountryDescription>
                <zipCode>069931</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Pooled Investment Fund</industryGroupType>
            <investmentFundInfo>
                <investmentFundType>Other Investment Fund</investmentFundType>
                <is40Act>false</is40Act>
            </investmentFundInfo>
        </industryGroup>
        <issuerSize>
            <aggregateNetAssetValueRange>Over $100,000,000</aggregateNetAssetValueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06</item>
            <item>3C</item>
            <item>3C.1</item>
            <item>3C.7</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>true</isAmendment>
                <previousAccessionNumber>0001419747-11-000001</previousAccessionNumber>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2006-07-03</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>true</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isPooledInvestmentFundType>true</isPooledInvestmentFundType>
            <isOtherType>true</isOtherType>
            <descriptionOfOtherType>Preferred Shares</descriptionOfOtherType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>1000000</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>Indefinite</totalOfferingAmount>
            <totalAmountSold>407630985</totalAmountSold>
            <totalRemaining>Indefinite</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>32</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>Tree Line Asia US Feeder Fund</issuerName>
                <signatureName>ZAHEER SITABKHAN</signatureName>
                <nameOfSigner>Zaheer Sitabkhan</nameOfSigner>
                <signatureTitle>Executive Officer/Director</signatureTitle>
                <signatureDate>2011-03-22</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
