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

    <schemaVersion>X0202</schemaVersion>

    <documentType>3/A</documentType>

    <periodOfReport>2005-06-23</periodOfReport>

    <dateOfOriginalSubmission>2005-05-11</dateOfOriginalSubmission>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001312483</issuerCik>
        <issuerName>Mellon Optima L/S Strategy Fund, LLC</issuerName>
        <issuerTradingSymbol>NA</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001321218</rptOwnerCik>
            <rptOwnerName>Powell Ridgway Hunter</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>MELLON HEDGE ADVISORS, LLC</rptOwnerStreet1>
            <rptOwnerStreet2>ONE BOSTON PLACE</rptOwnerStreet2>
            <rptOwnerCity>BOSTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02109</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <officerTitle>Vice President</officerTitle>
            <otherText>VP of the Investment Adviser</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <remarks>Exhibit 24 -- Confirming Statement</remarks>

    <ownerSignature>
        <signatureName>Peter M. Sullivan, Attorney-in-Fact</signatureName>
        <signatureDate>2006-05-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
