Harold Dieterle III (born 1977), of West Babylon, New York, U.S., was the winner of the first season of the Bravo cable television network reality television program Top Chef. A 1997 graduate of the Culinary Institute of America, he was a sous-chef at the Harrison Restaurant in New York City before leaving that position in early 2006 to plan the opening of his own restaurant. His restaurant, Perilla, opened in May 2007 in New York City.

On Top Chef, Dieterle won the first Elimination Challenge as well as the whole competition. His signature dish is Steamed Thai Snapper. Harold Dieterle's Steamed Thai Snapper at Bravo.com