Leo Castelli (born Leo Krauss on September 4, 1907, at Trieste, of Italian and Austro-Hungarian Jewish origin, – died August 21, 1999) was one of the most successful and influential art dealers of the 20th century. He was best known to the public as the art dealer who first sold Andy Warhol's soup can paintings, and whose gallery showcased cutting edge Contemporary art for five decades. Castelli showed Surrealism, Abstract Expressionism, Neo-Dada, Pop Art, Op Art, Color field painting, Hard-edge painting, Lyrical Abstraction, Minimal Art, Conceptual Art, and Neo-expressionism, among other movements.