Empire State Realty Trust (ESRT) 10-Q 2018 Q1 Quarterly report

EXHIBIT 32.1

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

PURSUANT TO

18 U.S.C. SECTION 1350

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Pursuant to 18 U.S.C. Section 1350, adopted pursuant to Section 906 of The Sarbanes-Oxley Act of 2002, the undersigned Chief Executive Officer of Empire State Realty Trust, Inc. (the "Company"), hereby certifies, to his knowledge that the Quarterly Report on Form 10-Q for the three months ended March 31, 2018 (the "Report"), as filed with the Securities and Exchange Commission on the date hereof, fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934, as amended, and that the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: May 3, 2018
By: /s/ Anthony E. Malkin 
Anthony E. Malkin Chairman and Chief Executive Officer