Antoine Saint-John (born 11 August 1940) (aka Domingo Antoine, Jean-Michel Antoine, Antoine Michel) is a French actor.
Born in Avignon, France, he found work as a stage actor until the early 1970s, when he began working on films. Most of his films are virtually unknown outside of Europe. His most famous role was in John Milius's historical epic The Wind and the Lion (1975), where he played an evil German colonel. He also appeared, playing similar characters, in the Spaghetti Westerns A Fistful of Dynamite (1971) and My Name is Nobody (1973). He also appeared as the zombified artist Schweick in Lucio Fulci's cult horror film The Beyond (1981). He speaks fluent English and German.