EX-32.1 4 chd-ex32_1.htm EX-32.1

EXHIBIT 32.1

CERTIFICATION PURSUANT TO

RULE 13a-14(b) UNDER THE SECURITIES EXCHANGE ACT AND
18 U.S.C. SECTION 1350

I, Richard A. Dierker, President and Chief Executive Officer of Church & Dwight Co., Inc. (the “Company”), hereby certify that, based on my knowledge:

1. The Company’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2025 (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.

|  | By: |  | /s/ Richard A. Dierker
|  |  |  | Richard A. Dierker
|  |  |  | President and Chief Executive Officer
|  | Dated: |  | October 31, 2025