John Angus Chamberlain (April 16, 1927 – December 21, 2011) was an American sculptor. At the time of his death he resided and worked on Shelter Island, New York

Born in Rochester, Indiana as the son of a saloonkeeper, Chamberlain spent much of his youth in Chicago. After serving in the U.S Navy from 1943 to 1946, he attended the Art Institute of Chicago (1951–52) and Black Mountain College (1955–56). At Black Mountain, he studied with the poets Charles Olsen, Robert Creeley, and Robert Duncan, who were teaching there that semester. The following year, he moved to New York, where for the first time he created sculpture that included scrap-metal auto parts. Over the course of his prolific career, he had studios in New York, New Mexico, Florida, Connecticut, and finally Shelter Island.