Captain Apache is a 1971 Spanish-British acid Western film directed by Alexander Singer and starring Lee Van Cleef, Carroll Baker, and Stuart Whitman. It was written and produced by Milton Sperling and Philip Yordan. The film was based on the 1965 novel Captain Apache by Sidney Edgerton Whitman, a prolific writer of Western fiction. The vocals of the opening and credits song were written by Dolores Claman and performed by Van Cleef.