Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

International Flavors & Fragrances Inc. Retirement Investment Fund Plan

New York, New York

We consent to the incorporation by reference in Registration Statement No. 33-54423 on Form S-8 of our report dated June 28, 2019, appearing in the Annual Report on Form 11-K of the International Flavors & Fragrances, Inc. Retirement Investment Fund Plan for the year ended December 31, 2018.

/s/ Smolin, Lupin & Co., P.A.

Fairfield, New Jersey

June 28, 2019