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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 mMPW0yvqzMf+tpzVrCKzsA==

<SEC-DOCUMENT>0001140361-08-022191.txt : 20080930
<SEC-HEADER>0001140361-08-022191.hdr.sgml : 20080930
<ACCEPTANCE-DATETIME>20080930204257
ACCESSION NUMBER:		0001140361-08-022191
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20080929
FILED AS OF DATE:		20080930
DATE AS OF CHANGE:		20080930

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AMERICAN INTERNATIONAL GROUP INC
		CENTRAL INDEX KEY:			0000005272
		STANDARD INDUSTRIAL CLASSIFICATION:	FIRE, MARINE & CASUALTY INSURANCE [6331]
		IRS NUMBER:				132592361
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		70 PINE ST
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10270
		BUSINESS PHONE:		2127707000

	MAIL ADDRESS:	
		STREET 1:		70 PINE STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10270

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AMERICAN INTERNATIONAL ENTERPRISES INC
		DATE OF NAME CHANGE:	19700507

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Universal Foundation Inc
		CENTRAL INDEX KEY:			0001354692
		STATE OF INCORPORATION:			R1

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-08787
		FILM NUMBER:		081098367

	BUSINESS ADDRESS:	
		STREET 1:		MERCURY HOUSE, 101 FRONT STREET
		CITY:			HAMILTON
		STATE:			D0
		ZIP:			HM12
		BUSINESS PHONE:		441-278-9304

	MAIL ADDRESS:	
		STREET 1:		MERCURY HOUSE, 101 FRONT STREET
		CITY:			HAMILTON
		STATE:			D0
		ZIP:			HM12
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 3
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0203</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2008-09-29</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000005272</issuerCik>
        <issuerName>AMERICAN INTERNATIONAL GROUP INC</issuerName>
        <issuerTradingSymbol>AIG</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001354692</rptOwnerCik>
            <rptOwnerName>Universal Foundation Inc</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>PO BOX HM 2907</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>HAMILTON</rptOwnerCity>
            <rptOwnerState>D0</rptOwnerState>
            <rptOwnerZipCode>HMLX</rptOwnerZipCode>
            <rptOwnerStateDescription>BERMUDA</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2112119</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes></footnotes>

    <remarks>Universal Foundation, Inc. may be deemed to beneficially own more than 10% of the common stock of American International Group, Inc. under Rule 16a-1(a)(1) under the Securities Exchange Act of 1934, as amended (the ?Exchange Act?), as a result of it being deemed a member of a group under Section 13(d)(3) of the Exchange Act.</remarks>

    <ownerSignature>
        <signatureName>/s/Mike F. Huang, Attorney-In-Fact</signatureName>
        <signatureDate>2008-09-30</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/Bertil P-H Lundqvist, Attorney-In-Fact</signatureName>
        <signatureDate>2008-09-30</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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