Warlock is a 1989 American supernatural horror film directed by Steve Miner and written by David Twohy. Julian Sands stars as the title character, a son of Satan who travels from the late 17th century to the modern era with the mission of destroying the world. Lori Singer and Richard E. Grant co-star as a 20th-century woman and a 17th-century witch-hunter attempting to stop him.

The film was shown internationally in 1989, but did not receive an American release until January 11, 1991. It received mixed reviews and grossed $9 million on a $15 million budget. Two sequels followed, with Sands reprising his role in the first sequel Warlock: The Armageddon (1993), although both sequels serve as standalone films with no connection to the original.