Exhibit 5.1

Client: 23202-00001
August 30, 2012
Del Frisco’s Restaurant Group, Inc.
930 S. Kimball Ave., Suite 100
Southlake, TX 76092
Re: | Del Frisco’s Restaurant Group, Inc. |
Registration Statement on Form S-8
Ladies and Gentlemen:
We have examined the Registration Statement on Form S-8 (the “Registration Statement”) of Del Frisco’s Restaurant Group, Inc., a Delaware corporation (the “Company”), to be filed with the Securities and Exchange Commission (the “Commission”) pursuant to the Securities Act of 1933, as amended (the “Securities Act”), in connection with the offering by the Company of up to 2,232,800 shares of the Company’s common stock, par value $0.001 per share (the “Shares”). The Shares subject to the Registration Statement are to be issued under the Del Frisco’s Restaurant Group 2012 Long-Term Incentive Plan (the “Plan”).
We have examined the originals, or photostatic or certified copies, of such records of the Company and certificates of officers of the Company and of public officials and such other documents as we have deemed relevant and necessary as the basis for the opinions set forth below. In our examination, we have assumed the genuineness of all signatures, the legal capacity and competency of all natural persons, the authenticity of all documents submitted to us as originals and the conformity to original documents of all documents submitted to us as copies.
Based upon the foregoing examination and in reliance thereon, and subject to the assumptions stated herein and in reliance on statements of fact contained in the documents that we have examined, we are of the opinion that the Shares, when issued and sold in accordance with the terms set forth in the Plan and against payment therefor, and when the Registration Statement has become effective under the Securities Act, will be validly issued, fully paid and non-assessable.
This opinion is limited to the effect of the current state of the Delaware General Corporation Law and the facts as they currently exist. We assume no obligation to revise or supplement this opinion in the event of future changes in such laws or the interpretation thereof or such facts.


Del Frisco’s Restaurant Group, Inc.
August 30, 2012
Page 2
We consent to the filing of this opinion as an exhibit to the Registration Statement. In giving this consent, we do not thereby admit that we are within the category of persons whose consent is required under Section 7 of the Securities Act or the Rules and Regulations of the Commission.
Very truly yours,
/S/ GIBSON, DUNN & CRUTCHER LLP