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<edgarSubmission>

    <schemaVersion>X0706</schemaVersion>

    <submissionType>D</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0000003530</cik>
        <entityName>ALGONQUIN GAS TRANSMISSION, LLC</entityName>
        <issuerAddress>
            <street1>5400 WESTHEIMER COURT</street1>
            <city>HOUSTON</city>
            <stateOrCountry>TX</stateOrCountry>
            <stateOrCountryDescription>TEXAS</stateOrCountryDescription>
            <zipCode>77056</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>(713) 627-5400</issuerPhoneNumber>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
        <edgarPreviousNameList>
            <previousName>ALGONQUIN GAS TRANSMISSION LLC</previousName>
            <previousName>ALGONQUIN GAS TRANSMISSION CO</previousName>
        </edgarPreviousNameList>
        <entityType>Limited Liability Company</entityType>
        <yearOfInc>
            <overFiveYears>true</overFiveYears>
        </yearOfInc>
    </primaryIssuer>

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            <relatedPersonName>
                <firstName>John</firstName>
                <middleName>V.</middleName>
                <lastName>Adams</lastName>
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                <street1>5400 Westheimer Court</street1>
                <city>Houston</city>
                <stateOrCountry>TX</stateOrCountry>
                <stateOrCountryDescription>TEXAS</stateOrCountryDescription>
                <zipCode>77056</zipCode>
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            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Vice President, Supply Chain</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Gregory</firstName>
                <middleName>P.</middleName>
                <lastName>Bilinski</lastName>
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                <street1>5400 Westheimer Court</street1>
                <city>Houston</city>
                <stateOrCountry>TX</stateOrCountry>
                <stateOrCountryDescription>TEXAS</stateOrCountryDescription>
                <zipCode>77056</zipCode>
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            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
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            <relationshipClarification>Vice President, Transmission Services</relationshipClarification>
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            <relatedPersonName>
                <firstName>Guy</firstName>
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                <lastName>Buckley</lastName>
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                <city>Houston</city>
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                <zipCode>77056</zipCode>
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            <relationshipClarification>Vice President and Treasurer</relationshipClarification>
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                <firstName>Frederick</firstName>
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                <lastName>Bush</lastName>
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                <zipCode>77056</zipCode>
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            <relationshipClarification>Vice President and Controller</relationshipClarification>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Allen</firstName>
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                <lastName>Capps</lastName>
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                <city>Houston</city>
                <stateOrCountry>TX</stateOrCountry>
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                <zipCode>77056</zipCode>
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            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Vice President</relationshipClarification>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Andrew</firstName>
                <middleName>J.</middleName>
                <lastName>Drake</lastName>
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                <zipCode>77056</zipCode>
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            <relationshipClarification>Vice President, Asset Integrity</relationshipClarification>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Tina</firstName>
                <middleName>V.</middleName>
                <lastName>Faraca</lastName>
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                <zipCode>77056</zipCode>
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            <relatedPersonRelationshipList>
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            <relationshipClarification>Vice President, Engineering and Construction</relationshipClarification>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Patrick</firstName>
                <middleName>J.</middleName>
                <lastName>Hester</lastName>
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            <relatedPersonAddress>
                <street1>5400 Westheimer Court</street1>
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                <zipCode>77056</zipCode>
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            <relatedPersonRelationshipList>
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            <relationshipClarification>Vice President and Assistant Secretary</relationshipClarification>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Richard</firstName>
                <middleName>J.</middleName>
                <lastName>Kruse, Jr.</lastName>
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                <stateOrCountry>TX</stateOrCountry>
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                <zipCode>77056</zipCode>
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            <relatedPersonRelationshipList>
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            <relationshipClarification>Vice President, Regulatory and FERC Compliance Officer</relationshipClarification>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Fulkra</firstName>
                <middleName>J.</middleName>
                <lastName>Mason</lastName>
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                <zipCode>77056</zipCode>
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            <relatedPersonRelationshipList>
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            </relatedPersonRelationshipList>
            <relationshipClarification>Vice President, Environmental, Health and Safety</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Gregg</firstName>
                <middleName>E.</middleName>
                <lastName>McBride</lastName>
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                <city>Houston</city>
                <stateOrCountry>TX</stateOrCountry>
                <stateOrCountryDescription>TEXAS</stateOrCountryDescription>
                <zipCode>77056</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Vice President, Rates and Certificates</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Brian</firstName>
                <middleName>R.</middleName>
                <lastName>McKerlie</lastName>
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            <relatedPersonAddress>
                <street1>5400 Westheimer Court</street1>
                <city>Houston</city>
                <stateOrCountry>TX</stateOrCountry>
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                <zipCode>77056</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Vice President, Business Development, Northeast Transmission</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Richard</firstName>
                <lastName>Paglia</lastName>
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            <relatedPersonAddress>
                <street1>5400 Westheimer Court</street1>
                <city>Houston</city>
                <stateOrCountry>TX</stateOrCountry>
                <stateOrCountryDescription>TEXAS</stateOrCountryDescription>
                <zipCode>77056</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Vice President, Marketing</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>J.</firstName>
                <middleName>Patrick</middleName>
                <lastName>Reddy</lastName>
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                <street1>5400 Westheimer Court</street1>
                <city>Houston</city>
                <stateOrCountry>TX</stateOrCountry>
                <stateOrCountryDescription>TEXAS</stateOrCountryDescription>
                <zipCode>77056</zipCode>
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            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Patricia</firstName>
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                <lastName>Rice</lastName>
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        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Gregory</firstName>
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                <lastName>Rizzo</lastName>
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        <relatedPersonInfo>
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                <firstName>William</firstName>
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        <relatedPersonInfo>
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    <offeringData>
        <industryGroup>
            <industryGroupType>Other Energy</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06</item>
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        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>false</isAmendment>
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            <dateOfFirstSale>
                <value>2012-07-17</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isDebtType>true</isDebtType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
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        <minimumInvestmentAccepted>1000000</minimumInvestmentAccepted>
        <salesCompensationList>
            <recipient>
                <recipientName>Barclays Capital Inc.</recipientName>
                <recipientCRDNumber>19714</recipientCRDNumber>
                <associatedBDName>None</associatedBDName>
                <associatedBDCRDNumber>None</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>745 Seventh Avenue</street1>
                    <city>New York</city>
                    <stateOrCountry>NY</stateOrCountry>
                    <stateOrCountryDescription>NEW YORK</stateOrCountryDescription>
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                    <description>NEW YORK</description>
                    <state>NJ</state>
                    <description>NEW JERSEY</description>
                    <state>WI</state>
                    <description>WISCONSIN</description>
                    <state>IL</state>
                    <description>ILLINOIS</description>
                    <state>CO</state>
                    <description>COLORADO</description>
                    <state>IN</state>
                    <description>INDIANA</description>
                </statesOfSolicitationList>
                <foreignSolicitation>false</foreignSolicitation>
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        </salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>350000000</totalOfferingAmount>
            <totalAmountSold>350000000</totalAmountSold>
            <totalRemaining>0</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>14</totalNumberAlreadyInvested>
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        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>875000</dollarAmount>
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                <dollarAmount>0</dollarAmount>
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            <clarificationOfResponse></clarificationOfResponse>
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        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
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            <clarificationOfResponse></clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>ALGONQUIN GAS TRANSMISSION, LLC</issuerName>
                <signatureName>/s/Patricia M. Rice</signatureName>
                <nameOfSigner>Patricia M. Rice</nameOfSigner>
                <signatureTitle>VP and Secretary</signatureTitle>
                <signatureDate>2012-07-30</signatureDate>
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        </signatureBlock>
    </offeringData>
</edgarSubmission>
