UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

(Amendment No.    )

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☐	Preliminary Proxy Statement
☐	Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
☐	Definitive Proxy Statement
☒	Definitive Additional Materials
☐	Soliciting Material Pursuant to §240.14a-12

DUNKIN’ BRANDS GROUP, INC.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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*** Exercise Your Right to Vote *** Important Notice Regarding the Availability of Proxy Materials for the Shareholder Meeting to Be Held on May 13, 2020. Meeting Information DUNKIN’ BRANDS GROUP, INC Meeting Type: Annual Meeting For holders as of: March 19, 2020 Date: May 13, 2020 Time: 10:00 AM EDT Location: Boston Marriott Quincy 1000 Marriott Drive Quincy, Massachusetts 02169 You are receiving this communication because you hold shares in the company named above. DUNKIN’ BRANDS GROUP, INC 130 ROYALL STREET This is not a ballot. You cannot use this notice to vote these CANTON, MA 02021 shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com or easily request a paper copy (see reverse side). We encourage you to access and review all of the important information contained in the proxy materials before voting. P36320 proxy See the materials reverse and side voting of this instructions. notice to obtain D00760 -

Before You Vote How to Access the Proxy Materials Proxy Materials Available to VIEW or RECEIVE: NOTICE AND PROXY STATEMENT FISCAL 2019 ANNUAL REPORT How to View Online: Have the information that is printed in the box marked by the arrow?XXXX XXXX XXXX XXXX (located on the following page) and visit: www.proxyvote.com. How to Request and Receive a PAPER or E-MAIL Copy: If you want to receive a paper or e-mail copy of these documents, you must request one. There is NO charge for requesting a copy. Please choose one of the following methods to make your request: 1) BY INTERNET: www.proxyvote.com 2) BY TELEPHONE: 1-800-579-1639 3) BY E-MAIL*: sendmaterial@proxyvote.com * If requesting materials by e-mail, please send a blank e-mail with the information that is printed in the box marked by the arrow?XXXX XXXX XXXX XXXX (located on the following page) in the subject line. Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor. Please make the request as instructed above on or before April 29, 2020 to facilitate timely delivery. How To Vote Please Choose One of the Following Voting Methods Vote In Person: Many shareholder meetings have attendance requirements including, but not limited to, the possession of an attendance ticket issued by the entity holding the meeting. Please check the meeting materials for any special requirements for meeting attendance. At the meeting, you will need to request a ballot to vote these shares. P36320 Vote By Internet: To vote now by Internet, go to www.proxyvote.com. Have the information that is printed in the box - marked by the arrow ?XXXX XXXX XXXX XXXX (located on the following page) available and follow the instructions. D00761 Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a proxy card.

Voting Items The Board of Directors recommends you vote FOR the following: 1. Election of Directors Nominees: 1a. Linda Boff 1b. Irene Chang Britt 1c. Michael Hines The Board of Directors recommends you vote FOR the following proposal: 2. To approve, on an advisory basis, the compensation paid by Dunkin’ Brands to its named executive of?cers. The Board of Directors recommends you vote FOR the following proposal: 3. To ratify the appointment of KPMG LLP as Dunkin’ Brands independent registered public accounting ?rm for the current ?scal year ending December 26, 2020. NOTE: Such other business as may properly come before the meeting or any adjournment thereof. - P36320 D00762

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