Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

International Flavors & Fragrances Inc. Retirement Investment Fund Plan

New York, New York

We hereby consent to the incorporation by reference in the Registration Statement on Form S-8 (No. 33-54423) of International Flavors & Fragrances Inc. of our report dated June 29, 2026, relating to the financial statements and supplemental schedules of the International Flavors & Fragrances Inc. Retirement Investment Fund Plan, which appears in this Annual Report on Form 11-K for the year ended December 31, 2025.

/s/ PKF O’Connor Davies, LLP

Harrison, New York

June 29, 2026