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<SEC-DOCUMENT>0001357204-10-000010.txt : 20100407
<SEC-HEADER>0001357204-10-000010.hdr.sgml : 20100407
<ACCEPTANCE-DATETIME>20100407123614
ACCESSION NUMBER:		0001357204-10-000010
CONFORMED SUBMISSION TYPE:	D/A
PUBLIC DOCUMENT COUNT:		1
ITEM INFORMATION:		Rule 506
ITEM INFORMATION:		Investment Company Act Section 3(c)
ITEM INFORMATION:		Section 3(c)(7)
FILED AS OF DATE:		20100407
DATE AS OF CHANGE:		20100407
EFFECTIVENESS DATE:		20100407

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Western Asset Opportunistic Local Market Debt Securities Portfolio, L.L.C.
		CENTRAL INDEX KEY:			0001385121
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE

	FILING VALUES:
		FORM TYPE:		D/A
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	021-97950
		FILM NUMBER:		10736436

	BUSINESS ADDRESS:	
		STREET 1:		385 EAST COLORADO BOULEVARD
		CITY:			Pasadena
		STATE:			CA
		ZIP:			91101
		BUSINESS PHONE:		626-844-9400

	MAIL ADDRESS:	
		STREET 1:		385 EAST COLORADO BOULEVARD
		CITY:			Pasadena
		STATE:			CA
		ZIP:			91101

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Western Asset Opportunistic Local Market Debt Securities Portfolio LLC
		DATE OF NAME CHANGE:	20100312

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Western Asset Opportunistic Local Market Debt Securities Portfollo L L C
		DATE OF NAME CHANGE:	20070104
</SEC-HEADER>
<DOCUMENT>
<TYPE>D/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
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    <schemaVersion>X0603</schemaVersion>

    <submissionType>D/A</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001385121</cik>
        <entityName>Western Asset Opportunistic Local Market Debt Securities Portfolio, L.L.C.</entityName>
        <issuerAddress>
            <street1>385 EAST COLORADO BOULEVARD</street1>
            <city>PASADENA</city>
            <stateOrCountry>CA</stateOrCountry>
            <zipCode>91101</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>626-844-9400</issuerPhoneNumber>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
        <edgarPreviousNameList>
            <previousName>Western Asset Opportunistic Local Market Debt Securities Portfolio LLC</previousName>
            <previousName>Western Asset Opportunistic Local Market Debt Securities Portfollo L L C</previousName>
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        <entityType>Limited Liability Company</entityType>
        <yearOfInc>
            <withinFiveYears>true</withinFiveYears>
            <value>2006</value>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>COMPANY</firstName>
                <lastName>WESTERN ASSET MANAGEMENT</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>385 EAST COLORADO BOULEVARD</street1>
                <city>PASADENA</city>
                <stateOrCountry>CA</stateOrCountry>
                <zipCode>91101</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Promoter</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>MANAGING MEMBER</relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Pooled Investment Fund</industryGroupType>
            <investmentFundInfo>
                <investmentFundType>Hedge Fund</investmentFundType>
                <is40Act>false</is40Act>
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        </industryGroup>
        <issuerSize>
            <aggregateNetAssetValueRange>Decline to Disclose</aggregateNetAssetValueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06</item>
            <item>3C</item>
            <item>3C.7</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>true</isAmendment>
                <previousAccessionNumber>9999999997-09-011170</previousAccessionNumber>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2006-05-30</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>true</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isPooledInvestmentFundType>true</isPooledInvestmentFundType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>Indefinite</totalOfferingAmount>
            <totalAmountSold>287060974</totalAmountSold>
            <totalRemaining>Indefinite</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>44</totalNumberAlreadyInvested>
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        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
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            <clarificationOfResponse></clarificationOfResponse>
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        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>Western Asset Opportunistic Local Market Debt Securities Portfolio, L.L.C.</issuerName>
                <signatureName>KEVIN EHRLICH</signatureName>
                <nameOfSigner>KEVIN EHRLICH</nameOfSigner>
                <signatureTitle>MANAGER, REGULATORY AFFAIRS</signatureTitle>
                <signatureDate>2010-04-07</signatureDate>
            </signature>
        </signatureBlock>
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