Exhibit 32.1

CERTIFICATIONS OF CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER

PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q for the fiscal quarter ended July 29, 2023 of Tilly’s, Inc. (the “Company”) as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Edmond Thomas, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(i)the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(ii)the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: September 1, 2023

/s/ Edmond Thomas

Edmond Thomas

President, Chief Executive Officer and Director

In connection with the Quarterly Report on Form 10-Q for the fiscal quarter ended July 29, 2023 of Tilly’s, Inc. (the “Company”) as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Michael Henry, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(i)the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(ii)the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: September 1, 2023

/s/ Michael Henry

Michael Henry

Chief Financial Officer

The foregoing certifications are being furnished solely to accompany the Report pursuant to 18 U.S.C. Section 1350 and in accordance with SEC Release No. 33-8238. These certifications shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, nor shall they be incorporated by reference in any filing of the Company under the Securities Act of 1933, as amended, whether made before or after the date hereof, regardless of any general incorporation language in such filing.