Marriott International (MAR) 10-Q 2021 Q2 Quarterly report

Exhibit 32

Certification

Pursuant to Rule 13a-14(b) and Section 906 of the Sarbanes-Oxley Act of 2002

(18 U.S.C. Sections 1350(a) and (b))

I, Anthony G. Capuano, Chief Executive Officer of Marriott International, Inc. (the “Company”) certify that:

(1)the quarterly report on Form 10-Q of the Company for the period ended June 30, 2021, (the “Quarterly Report”) fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m or 78o(d)); and

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

3rd day of August, 2021	/s/ Anthony G. Capuano
	Anthony G. Capuano   Chief Executive Officer   (Principal Executive Officer)

I, Kathleen K. Oberg, Executive Vice President and Chief Financial Officer of Marriott International, Inc. (the “Company”) certify that:

(1)the quarterly report on Form 10-Q of the Company for the period ended June 30, 2021, (the “Quarterly Report”) fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m or 78o(d)); and

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

3rd day of August, 2021	/s/ Kathleen K. Oberg
	Kathleen K. Oberg   Executive Vice President and   Chief Financial Officer   (Principal Financial Officer)