EXHIBIT 32.1

CERTIFICATION 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 of Simon Property Group, Inc. (the “Company”) on Form 10-Q for the period ended Septemer 30, 2023 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), each of the undersigned certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

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

/s/ DAVID SIMON

David Simon

Chairman of the Board of Directors,

Chief Executive Officer and President

Date: November 2, 2023

/s/ Brian J. McDade

Brian J. McDade

Executive Vice President and Chief Financial

Officer

Date: November 2, 2023