Knox Martin (born February 12, 1923) is an American painter, sculptor and muralist.
Born in Barranquilla, Colombia, he studied at the Art Students League of New York from 1946 till 1950. He is one of the leading members of the New York School of artists and writers. He lives and works in New York City.
"Art is at its cutting edge out of a specific lineage - the creation of reality. The subject matter of what I do, is creation." - Knox Martin (1999).