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Exhibit 32.1


CERTIFICATION PURSUANT TO
18 U.S.C.
§1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

        In connection with the Quarterly Report on Form 10-Q of CRA International, Inc. (the "Company") for the quarter ended June 30, 2012, as filed with the Securities and Exchange Commission on the date hereof (the "Report"), each of the undersigned President and Chief Executive Officer and Executive Vice President, Treasurer, and Chief Financial Officer of the Company, certifies, to the best knowledge and belief of the signatory, pursuant to 18 U.S.C. §1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

/s/ PAUL A. MALEH

Paul A. Maleh
President and Chief Executive Officer
Date: August 8, 2012
  /s/ WAYNE D. MACKIE

Wayne D. Mackie
Executive Vice President, Treasurer, and
Chief Financial Officer
Date: August 8, 2012



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CERTIFICATION PURSUANT TO 18 U.S.C. § 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002