Dunkin Brands (DNKN) 10-Q 2017 Q3 Quarterly report

Exhibit 32.2

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 Dunkin’ Brands Group, Inc. (the “Company”) on Form 10-Q for the period ended September 30, 2017, as filed with the Securities and Exchange Commission (the “Report”), I, Katherine Jaspon, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002, that based on my knowledge:

1) the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; 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/ Katherine Jaspon

Katherine Jaspon

Chief Financial Officer

Dated: November 8, 2017

A signed original of this written statement required by Section 906, or other document authenticating, acknowledging, or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section 906, has been provided to Dunkin’ Brands Group, Inc. and will be retained by Dunkin’ Brands Group, Inc. and furnished to the Securities and Exchange Commission or its staff upon request.