Exhibit 21.1

RED ROBIN GOURMET BURGERS, INC.

LIST OF SUBSIDIARIES

1.Red Robin International, Inc., a Nevada corporation

2.Red Robin West, Inc., a Nevada corporation

3.Red Robin North Holdings, Inc., a Nevada corporation

4.Western Franchise Development, Inc., a California corporation

5.Red Robin Distributing Company LLC, a Nevada limited liability company

6.Northwest Robins, LLC, a Washington limited liability company

7.Red Robin Express, LLC, a Colorado limited liability company

8.RR Bird Purchasing, LLC, a Colorado limited liability company

9.RRGB Restaurants Canada, Inc., a British Columbia corporation

10.Red Robin of Anne Arundel County, Inc., a Maryland corporation

11.Red Robin of Baltimore County, Inc., a Maryland corporation

12.Red Robin of Charles County, Inc., a Maryland corporation

13.Red Robin of Harford County, Inc a Maryland corporation

14.Red Robin of Howard County, Inc., a Maryland corporation

15.Red Robin of Montgomery County, Inc., a Maryland corporation

16.Red Robin of St. Mary’s County, Inc., a Maryland corporation

17.Red Robin of Washington County, LLC, a Maryland limited liability company

18.Red Robin Frederick County, LLC, a Maryland limited liability company