EXHIBIT 32.1

DIEBOLD NIXDORF, INCORPORATED AND SUBSIDIARIES

CERTIFICATION OF CHIEF EXECUTIVE OFFICER PURSUANT TO SECTION 906

OF THE SARBANES-OXLEY ACT OF 2002, 18 U.S.C. SECTION 1350

In connection with the Quarterly Report on Form 10-Q of Diebold Nixdorf, Incorporated (Company) for the quarter ended June 30, 2024 as filed with the Securities and Exchange Commission on the date hereof (Report), I, Octavio Marquez, President and Chief Executive Officer, certify, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350, that, to my knowledge:

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

2The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of the dates and for the periods expressed in the Report.

Date:	August 07, 2024	/s/ Octavio Marquez
		Octavio Marquez
		President and Chief Executive Officer (Principal Executive Officer)