Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the incorporation by reference in this Post-Effective Amendment No.1 to Registration StatementNo. 333-225619 on FormS-8 of our reports dated February 28, 2019, relating to the consolidated financial statements of Potbelly Corporation and subsidiaries (the “Company”) and the effectiveness of the Company’s internal control over financial reporting, appearing in the Annual Report on Form10-K of the Company for the year ended December 30, 2018.
/s/ Deloitte & Touche LLP
Chicago, Illinois
June 10, 2019
