Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in the Registration Statement (No. 333-208188, 333-159513, 333-115713, 033-54158)

on Form S-8 of our report dated June 18, 2020, which appears in this annual report on Form 11 -K of the Quaker Chemical

Corporation Retirement Savings Plan for the year ended December 31, 2019.

/s/ Baker Tilly Virchow Krause, LLP

Philadelphia, Pennsylvania

June 18, 2020