-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 NXUOy7tX5P+ZUBmr81GCjVN9r5UVctfPkJ6V5zzMr/O2vaync2X94P51tcO0/R8C
 EpYr9NAf3NdmAatpVIdVug==

<SEC-DOCUMENT>0000049071-08-000060.txt : 20080828
<SEC-HEADER>0000049071-08-000060.hdr.sgml : 20080828
<ACCEPTANCE-DATETIME>20080828100948
ACCESSION NUMBER:		0000049071-08-000060
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20080827
FILED AS OF DATE:		20080828
DATE AS OF CHANGE:		20080828

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			HUMANA INC
		CENTRAL INDEX KEY:			0000049071
		STANDARD INDUSTRIAL CLASSIFICATION:	HOSPITAL & MEDICAL SERVICE PLANS [6324]
		IRS NUMBER:				610647538
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		500 W MAIN ST
		CITY:			LOUISVILLE
		STATE:			KY
		ZIP:			40202
		BUSINESS PHONE:		5025801000

	MAIL ADDRESS:	
		STREET 1:		500 W. MAIN ST
		CITY:			LOUISVILLE
		STATE:			KY
		ZIP:			40202

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	EXTENDICARE INC
		DATE OF NAME CHANGE:	19740404

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	HERITAGE HOUSE OF AMERICA INC
		DATE OF NAME CHANGE:	19671129

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			PETERSON MARISSA T
		CENTRAL INDEX KEY:			0001220067

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-05975
		FILM NUMBER:		081043777

	BUSINESS ADDRESS:	
		STREET 1:		C/O SUN MICROSYSTEMS INC
		STREET 2:		4120 NETWORK CIRCLE M/S SCA12-202
		CITY:			SANTA CLARA
		STATE:			CA
		ZIP:			95054
		BUSINESS PHONE:		5103155976

	MAIL ADDRESS:	
		STREET 1:		SUN MICROSYSTEMS, INC.
		STREET 2:		7777 GATEWAY BLVD, BLDG 11, MSUNWK11-260
		CITY:			NEWARK
		STATE:			CA
		ZIP:			94560
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0203</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2008-08-27</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000049071</issuerCik>
        <issuerName>HUMANA INC</issuerName>
        <issuerTradingSymbol>HUM</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001220067</rptOwnerCik>
            <rptOwnerName>PETERSON MARISSA T</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>713 HILLCREST TERRACE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>FREMONT</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94539</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Humana Common</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes></footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Marissa T. Peterson</signatureName>
        <signatureDate>2008-08-27</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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