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Booz Allen Hamilton Holding Corporation

8283 Greensboro Drive

McLean, VA 22102

November 12, 2010

Securities and Exchange Commission

Division of Corporation Finance

100 F Street, N.E.

Washington, D.C. 20549

Registration Statement on Form S-1

of Booz Allen Hamilton Holding Corporation

File No. 333-167645

Ladies and Gentlemen:

     Pursuant to the provisions of Rule 461 under the Securities Act of 1933, as amended, Booz
Allen Hamilton Holding Corporation, a Delaware corporation (the “Registrant”), hereby respectfully
requests that the effective date of the above-referenced Registration Statement be accelerated so
as to permit it to become effective at 3:00 P.M. (EST) on November 16, 2010 or as soon thereafter
as possible.

          The Registrant hereby acknowledges that:

          (i) should the Securities and Exchange Commission (the “Commission”)
or the staff, acting pursuant to delegated authority, declare the filing effective, it does not
foreclose the Commission from taking any action with respect to the filing;

          (ii) the action of the Commission or the staff, acting pursuant to delegated authority, in
declaring the filing effective, does not relieve the Registrant from its full responsibility for
the adequacy and accuracy of the disclosure in the filing; and

          (iii) the Registrant may not assert staff comments and this action as a defense in any
proceeding initiated by the Commission or any person under the federal securities laws of the
United States.

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    Very truly yours,

Booz Allen Hamilton Holding Corporation

    By:
    /s/ CG Appleby

    Name:
    CG Appleby

    Title:
    General
Counsel and Secretary