<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:ns2="http://www.sec.gov/edgar/common">
    <headerData>
        <submissionType>144</submissionType>
        <filerInfo>
            <filer>
                <filerCredentials>
                    <cik>0001511393</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
            </filer>
            <liveTestFlag>LIVE</liveTestFlag>



        </filerInfo>
    </headerData>
    <formData>
        <issuerInfo>
            <issuerCik>0001387467</issuerCik>
            <issuerName>ALPHA AND OMEGA SEMICONDUCTOR LIMITED</issuerName>
            <secFileNumber>001-34717</secFileNumber>
            <issuerAddress>
                <ns2:street1>Clarendon House, 2 Church Street</ns2:street1>
                <ns2:city>Hamilton</ns2:city>
                <ns2:stateOrCountry>D0</ns2:stateOrCountry>
                <ns2:zipCode>HM 11</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>(408) 830-9742</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>MIKE CHANG</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Officer</relationshipToIssuer>
                <relationshipToIssuer>Director</relationshipToIssuer>
                <relationshipToIssuer>10% Stockholder</relationshipToIssuer>
            </relationshipsToIssuer>
        </issuerInfo>
        <securitiesInformation>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <brokerOrMarketmakerDetails>
                <name>Morgan Stanley Smith Barney LLC Executive Financial Services</name>
                <address>
                    <ns2:street1>1 New York Plaza</ns2:street1>
                    <ns2:street2>38th Floor</ns2:street2>
                    <ns2:city>New York</ns2:city>
                    <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                    <ns2:zipCode>10004</ns2:zipCode>
                </address>
            </brokerOrMarketmakerDetails>
            <noOfUnitsSold>30000</noOfUnitsSold>
            <aggregateMarketValue>750000.00</aggregateMarketValue>
            <noOfUnitsOutstanding>27784521</noOfUnitsOutstanding>
            <approxSaleDate>12/14/2023</approxSaleDate>
            <securitiesExchangeName>NASDAQ</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>COMMON</securitiesClassTitle>
            <acquiredDate>12/14/2023</acquiredDate>
            <natureOfAcquisitionTransaction>Stock Option Exercise</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>30000</amountOfSecuritiesAcquired>
            <paymentDate>12/14/2023</paymentDate>
            <natureOfPayment>Cash</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>MIKE CHANG</name>
                <address>
                    <ns2:street1>Clarendon House, 2 Church Street</ns2:street1>
                    <ns2:city>Hamilton</ns2:city>
                    <ns2:stateOrCountry>D0</ns2:stateOrCountry>
                    <ns2:zipCode>HM 11</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>10/26/2023</saleDate>
            <amountOfSecuritiesSold>30000</amountOfSecuritiesSold>
            <grossProceeds>750987.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>MIKE CHANG</name>
                <address>
                    <ns2:street1>Clarendon House, 2 Church Street</ns2:street1>
                    <ns2:city>Hamilton</ns2:city>
                    <ns2:stateOrCountry>D0</ns2:stateOrCountry>
                    <ns2:zipCode>HM 11</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>09/26/2023</saleDate>
            <amountOfSecuritiesSold>30000</amountOfSecuritiesSold>
            <grossProceeds>859059.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>12/14/2023</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>05/26/2023</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ Mike F Chang</signature>
        </noticeSignature>
    </formData>
</edgarSubmission>
[{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 4879}]
144
0001511393
XXXXXXXX
LIVE
0001387467
ALPHA AND OMEGA SEMICONDUCTOR LIMITED
001-34717
Clarendon House, 2 Church Street
Hamilton
D0
HM 11
(408) 830-9742
MIKE CHANG
Officer
Director
10% Stockholder
Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
38th Floor
New York
NY
10004
30000
750000.00
27784521
12/14/2023
NASDAQ
COMMON
12/14/2023
Stock Option Exercise
ISSUER
N
30000
12/14/2023
Cash
N
MIKE CHANG
Clarendon House, 2 Church Street
Hamilton
D0
HM 11
Common
10/26/2023
30000
750987.00
MIKE CHANG
Clarendon House, 2 Church Street
Hamilton
D0
HM 11
Common
09/26/2023
30000
859059.00
12/14/2023
05/26/2023
/s/ Mike F Chang