Del Frisco's Restaurant (DFRG) 10-Q 2017 Q2 Quarterly report

Exhibit 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO SECTION 906 OF

THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Del Frisco’s Restaurant Group, Inc. (the “Company”) on Form 10-Q for the quarterly period ended June 13, 2017 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned, Norman J. Abdallah, Chief Executive Officer of the Company, and Neil H. Thomson, Chief Financial Officer of the Company, each certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 that to his knowledge:

(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.

Date: July 21, 2017

/s/ Norman J. Abdallah

Norman J. Abdallah

Chief Executive Officer

(Principal Executive Officer)

Date: July 21, 2017

/s/ Neil H. Thomson

Neil H. Thomson

Chief Financial Officer

(Principal Financial and Accounting Officer)