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    <headerData>
        <submissionType>144</submissionType>
        <filerInfo>
            <filer>
                <filerCredentials>
                    <cik>0001522325</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>YIFAN LIANG</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Officer</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>8th Floor</ns2:street2>
                    <ns2:city>New York</ns2:city>
                    <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                    <ns2:zipCode>10004</ns2:zipCode>
                </address>
            </brokerOrMarketmakerDetails>
            <noOfUnitsSold>31004</noOfUnitsSold>
            <aggregateMarketValue>1525619.26</aggregateMarketValue>
            <noOfUnitsOutstanding>29030838</noOfUnitsOutstanding>
            <approxSaleDate>12/04/2024</approxSaleDate>
            <securitiesExchangeName>NASDAQ</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>03/15/2020</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted Stock</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>3860</amountOfSecuritiesAcquired>
            <paymentDate>03/15/2020</paymentDate>
            <natureOfPayment>Not Applicable</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>03/15/2021</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted Stock</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>4310</amountOfSecuritiesAcquired>
            <paymentDate>03/15/2021</paymentDate>
            <natureOfPayment>Not Applicable</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>03/15/2020</acquiredDate>
            <natureOfAcquisitionTransaction>Performance Shares</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>3283</amountOfSecuritiesAcquired>
            <paymentDate>03/15/2020</paymentDate>
            <natureOfPayment>Not Applicable</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>03/15/2019</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted Stock</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>2173</amountOfSecuritiesAcquired>
            <paymentDate>03/15/2019</paymentDate>
            <natureOfPayment>Not Applicable</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>03/15/2021</acquiredDate>
            <natureOfAcquisitionTransaction>Performance Shares</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>3647</amountOfSecuritiesAcquired>
            <paymentDate>03/15/2021</paymentDate>
            <natureOfPayment>Not Applicable</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>03/15/2019</acquiredDate>
            <natureOfAcquisitionTransaction>Performance Shares</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>3677</amountOfSecuritiesAcquired>
            <paymentDate>03/15/2019</paymentDate>
            <natureOfPayment>Not Applicable</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>03/15/2022</acquiredDate>
            <natureOfAcquisitionTransaction>Performance Shares</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>3647</amountOfSecuritiesAcquired>
            <paymentDate>03/15/2022</paymentDate>
            <natureOfPayment>Not Applicable</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>03/15/2022</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted Stock</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>4281</amountOfSecuritiesAcquired>
            <paymentDate>03/15/2022</paymentDate>
            <natureOfPayment>Not Applicable</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>03/15/2023</acquiredDate>
            <natureOfAcquisitionTransaction>Restricted Stock</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>2126</amountOfSecuritiesAcquired>
            <paymentDate>03/15/2023</paymentDate>
            <natureOfPayment>Not Applicable</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>12/04/2024</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>09/04/2024</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ Yifan Liang</signature>
        </noticeSignature>
    </formData>
</edgarSubmission>
[{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 8044}]
144
0001522325
XXXXXXXX
LIVE
0001387467
ALPHA AND OMEGA SEMICONDUCTOR LIMITED
001-34717
Clarendon House, 2 Church Street
Hamilton
D0
HM 11
(408) 830-9742
YIFAN LIANG
Officer
Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
8th Floor
New York
NY
10004
31004
1525619.26
29030838
12/04/2024
NASDAQ
Common
03/15/2020
Restricted Stock
ISSUER
N
3860
03/15/2020
Not Applicable
Common
03/15/2021
Restricted Stock
ISSUER
N
4310
03/15/2021
Not Applicable
Common
03/15/2020
Performance Shares
ISSUER
N
3283
03/15/2020
Not Applicable
Common
03/15/2019
Restricted Stock
ISSUER
N
2173
03/15/2019
Not Applicable
Common
03/15/2021
Performance Shares
ISSUER
N
3647
03/15/2021
Not Applicable
Common
03/15/2019
Performance Shares
ISSUER
N
3677
03/15/2019
Not Applicable
Common
03/15/2022
Performance Shares
ISSUER
N
3647
03/15/2022
Not Applicable
Common
03/15/2022
Restricted Stock
ISSUER
N
4281
03/15/2022
Not Applicable
Common
03/15/2023
Restricted Stock
ISSUER
N
2126
03/15/2023
Not Applicable
Y
12/04/2024
09/04/2024
/s/ Yifan Liang