Exhibit 32.1

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

     Each of the undersigned, William M. Goodyear, Chairman and Chief Executive Officer of Navigant Consulting, Inc. (the “Company”), and Thomas A. Nardi, Executive Vice President and Chief Financial Officer of the Company, in connection with the filing with the Securities and Exchange Commission of the Company’s Quarterly Report on Form 10-Q for the three months ended June 30, 2011 (the “Report”), hereby certifies, pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1.	The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
2.	The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ WILLIAM M. GOODYEAR  

William M. Goodyear 

Chairman and Chief Executive Officer 

July 29, 2011 

/s/ THOMAS A. NARDI  

Thomas A. Nardi 

Executive Vice President and
Chief Financial Officer 

July 29, 2011