Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in the Registration Statements (No. 333-208288) on Form S-3 and (No. 333-201203) on Form S-8 of Five Star Senior Living Inc. (“the Company”) of our report dated March 6, 2019, relating to the consolidated financial statements of the Company, appearing in this Annual Report on Form 10-K of the Company for the year ended December 31, 2018.

/s/ RSM US LLP

Boston, Massachusetts

March 6, 2019