Adolph Frederick Reinhardt ("Ad" Reinhardt) (December 24, 1913 – August 30, 1967) was an abstract painter active in New York beginning in the 1930s and continuing through the 1960s. He was a member of the American Abstract Artists and was a part of the movement centered on the Betty Parsons Gallery that became known as abstract expressionism. He was also a founding member of the Artist's Club.