LIMITED POWER OF ATTORNEY FOR SECTION 16 REPORTING OBLIGATIONS



Know all by these presents, that the undersigned hereby constitutes and appoints

each of Joan O. Lehanan and Joseph C. Ventura, signing singly, the undersigned's

true and lawful attorney in fact to:



1. Execute for and on behalf of the undersigned, in the undersigned's capacity

as a director of Humana Inc. (the Company) Forms 3, 4, and 5

(and any amendments thereto) in accordance with Section 16(a) of the Securities

and Exchange Act of 1934 (the Act) and the rules thereunder;



2. Do and perform any and all acts for and on behalf of the undersigned

which may be necessary or desirable to complete and execute any such

Forms 3, 4, and 5 and timely file such form with the United States

Securities and Exchange Commission (the SEC) and any stock exchange

or similar authority, and



3. Take any other action of any type whatsoever in connection with the

foregoing which,in the opinion of such attorney in fact, may be of benefit to,

in the best interest of,or legally required by, the undersigned, it being

understood that the documents executed by such attorney in fact on behalf of

the undersigned pursuant to this Power of Attorney shall be in such form and

shall contain such terms and conditions as such attorney in fact may approve

in such attorney in fact's discretion.



The undersigned hereby grants to each such attorney in fact full power and

authority to do and perform any and every act and thing whatsoever requisite,

necessary,or proper to be done in the exercise of any of the rights and powers

herein granted,as fully to all intents and purposes as the undersigned might

or could do if personally present, with full power of substitution or

revocation, hereby ratifying and confirming all that such attorney in fact,

or such attorney in fact's substitute or substitutes, shall lawfully do or

cause to be done by virtue of this power of attorney and the rights and powers

herein granted. The undersigned acknowledges that the foregoing

attorneys in fact, in serving in such capacity at the request of the undersigned,

are not assuming, nor is the Company assuming, any of the undersigned's

responsibilities to comply with Section 16 of the Act, and that the undersigned

shall review and affirm the accuracy of any such filings made on his behalf by

the foregoing attorneys in fact.



This Power of Attorney shall remain in full force and effect until the undersigned

is no longer required to file Forms 3, 4, and 5 with respect to the undersigned's

holdings of and transactions in securities issued by the Company, unless earlier

revoked by the undersigned in a signed writing delivered to the foregoing

attorneys in fact. This Power of Attorney may be filed with the SEC as a

confirming statement of the authority granted herein.



IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney

to be executed as of this 24th day of February, 2012.



/s/ W. Roy Dunbar

W. Roy Dunbar