Exhibit 99.1

FOR IMMEDIATE RELEASE

Dunkin’ Brands Reports Second Quarter 2011 Results

CANTON, Mass. (August 3, 2011)—Dunkin’ Brands Group, Inc. (Nasdaq: DNKN), the parent company of Dunkin’ Donuts (DD) and Baskin-Robbins (BR), today reported results for the quarter ended June 25, 2011. “We delivered strong results for the quarter as a result of our continued focus on driving comparable store sales, expanding contiguously in the U.S., and accelerating international growth across both brands,” said Nigel Travis, Chief Executive Officer, Dunkin’ Brands, Inc. and President, Dunkin’ Donuts. “Our emphasis on operational excellence and exciting product innovations, supported by great marketing, produced strong global system-wide sales and comparable store sales growth for Dunkin’ Donuts U.S., while our franchisees and licensees continued to drive new store growth, both domestically and internationally.”

Consolidated Key Highlights

Second quarter 2011 financial highlights included:

The global system-wide sales growth for the second quarter was primarily attributable to Dunkin’ Donuts U.S. comparable store sales growth (which includes stores open 54 weeks or more), growth in Dunkin’ Donuts and Baskin-Robbins international sales, and global store development.

“Since the first of the year, we have significantly increased the strength of our balance sheet, and after the completion of our initial public offering, have reduced our annual interest expense by 50 percent to approximately $60 million through a combination of debt retirement, restructuring, and repricing. This financing activity resulted in non-recurring charges which impacted year-to-date net income,” said Chief Financial Officer Neil Moses. “The performance of the business in the second quarter demonstrates the strength of our business model and the integrity of our platform for future growth.”

“It’s an exciting time for Dunkin’ Brands as a new public company,” said Travis. “We are pleased with our second quarter results and look forward to sharing our longer term growth opportunities and financial goals in the near future.”

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Conference Call

As previously announced, Dunkin’ Brands will be holding a conference call today at 8:00 am ET hosted by Chief Executive Officer, Nigel Travis, and Chief Financial Officer, Neil Moses. The dial-in number is (866) 393-1607 or (914) 495-8556, conference number 82802192. Dunkin’ Brands will broadcast the conference call live over the Internet at http://investor.dunkinbrands.com. A replay of the conference call will be available on the Company’s website at http://investor.dunkinbrands.com.

The Company’s consolidated statements of operations, condensed consolidated balance sheets, condensed consolidated statements of cash flows and other additional information have been provided with this press release. This information should be reviewed in conjunction with this press release.

Forward-Looking Statements

Certain statements contained herein are not based on historical fact and are “forward-looking statements” within the meaning of the applicable securities laws and regulations. Generally, these statements can be

identified by the use of words such as “anticipate,” “believe,” “could,” “estimate,” “expect,” “feel,” “forecast,” “intend,” “may,” “plan,” “potential,” “project,” “should,” “would,” and similar expressions intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. These forward-looking statements include all matters that are not historical facts. By their nature, forward-looking statements involve risks and uncertainties because they relate to events and depend on circumstances that may or may not occur in the future. These risk and uncertainties include, but are not limited to: the ongoing level of profitability of franchisees and licensees; changes in working relationship with our franchisees and licensees and the actions of our franchisees and licensees; our master franchisees’ relationships with sub-franchisees; the strength of our brand in the markets in which we compete; changes in competition within the quick service restaurant segment of the food industry; changes in consumer behavior resulting from changes in technologies or alternative methods of delivery; economic and political conditions in the countries where we operate; our substantial indebtedness; our ability to protect our intellectual property rights; consumer preferences, spending patterns and demographic trends; the success of our growth strategy and international development; changes in commodity and food prices, particularly coffee, dairy products and sugar, and the other operating costs; shortages of coffee; failure of our network and information technology systems; interruptions or shortages in the supply of products to our franchisees and licensees; inability to recover our capital costs; changes in political, legal, economic or other factors in international markets; termination of a master franchise agreement or contracts with the U.S. military; currency exchange rates; the impact of food borne-illness or food safety issues or adverse public or medial opinions regarding the health effects of consuming our products; our ability to collect royalty payments from our franchisees and licensees; uncertainties relating to litigation; changes in regulatory requirements to our and our franchisees and licensees ability to comply with current or future regulatory requirements; review and audit of certain of our tax returns; the ability of our franchisees and licensees to open new restaurants and keep existing restaurants in operation; our ability to retain key personnel; any inability to protect consumer credit card data and catastrophic events.

Forward-looking statements reflect management’s analysis as of the date of this press release. Important factors that could cause actual results to differ materially from our expectations are more fully described in our other filings with the Securities and Exchange Commission, including under the section headed “Risk Factors” in our prospectus filed with the Securities and Exchange Commission on July 27, 2011. Except as required by applicable law, we do not undertake to publicly update or revise any of these forward-looking statements, whether as a result of new information, future events or otherwise.

Non-GAAP Measures and Statistical Data

In addition to the results provided in accordance with U.S. generally accepted accounting principles (“GAAP”) throughout this document, the Company has provided a non-GAAP measurement, adjusted net income, which presents operating results on a basis before certain adjustments. The Company uses adjusted net income as a key performance measure for the purpose of evaluating performance internally. We also believe adjusted net income provides our investors with useful information regarding our historical operating results. This non-GAAP measurement is not intended to replace the presentation of our financial results in accordance with GAAP. Use of the term adjusted net income may differ from similar measures reported by other companies. Adjusted net income is reconciled from net income determined under GAAP in the attached table “Dunkin’ Brands Group, Inc. Non-GAAP Reconciliation.”

Additionally, the Company has included metrics such as system-wide sales growth and comparable store sales growth, which are commonly used statistical measures in the quick-service restaurant industry and are important to understanding Company performance.

The Company uses “System-wide sales growth” to refer to the percentage change in sales at both franchisee- and company-owned restaurants from the comparable period of the prior year. Changes in system-wide sales are driven by changes in average comparable store sales and changes in the number of restaurants.

The Company uses “Consolidated US comparable store sales,” “DD domestic comparable store sales” and “BR domestic comparable store sales,” which are calculated by including only sales from franchisee- and company-owned restaurants that have been open at least 54 weeks and that have reported sales in the current and comparable prior year week.

About Dunkin’ Brands, Inc.

With more than 16,000 points of distribution in 56 countries worldwide, Dunkin’ Brands Group, Inc. (Nasdaq: DNKN), is one of the world’s leading franchisors of quick service restaurants (QSR) serving hot and cold coffee and baked goods, as well as hardserve ice cream. At the end of 2010, Dunkin’ Brands’ nearly 100 percent franchised business model included 9,760 Dunkin’ Donuts restaurants and 6,433 Baskin-Robbins restaurants, and the company had system-wide sales of approximately $7.7 billion. Dunkin’ Brands Group, Inc. is headquartered in Canton, Mass. The Company’s website is located at www.dunkinbrands.com.

Contact(s):

SEGMENT RESULTS

DUNKIN’ BRANDS GROUP, INC. AND SUBSIDIARIES

Consolidated Statements of Operations

(In thousands)

(Unaudited)

DUNKIN’ BRANDS GROUP, INC. AND SUBSIDIARIES

Condensed Consolidated Balance Sheets

(In thousands)

(Unaudited)

DUNKIN’ BRANDS GROUP, INC. AND SUBSIDIARIES

Condensed Consolidated Statements of Cash Flows

(In thousands)

(Unaudited)

DUNKIN’ BRANDS GROUP, INC. AND SUBSIDIARIES

Non-GAAP Reconciliation

(In thousands)