Kees Nierop (born 16 March 1958 in Purmerend, the Netherlands) is a former professional Dutch race car driver.
He is most noted for winning the 1983 12 Hours of Sebring race while driving a Porsche 934.
He is also credited with being the only Canadian to have his name on a Porsche factory race car, which is displayed in the Porsche Museum located in Stuttgart, Germany.