Embryo is a 1976 American science fiction horror film directed by Ralph Nelson starring Rock Hudson, Barbara Carrera, and Diane Ladd with a cameo appearance by Roddy McDowall. It deals with the mental and physical consequences of growing a human embryo in an artificial uterus. The film is in the public domain.

Ralph Nelson was an American film and television director, producer, writer, and actor. He was best known for directing Lilies of the Field (1963), Father Goose (1964), and Charly (1968), films which won Academy Awards.