Satan's Slave (Indonesian: Pengabdi Setan) is a 1980 Indonesian supernatural horror film directed by Sisworo Gautama Putra. The plot follows a wealthy family who have stopped practicing their Muslim faith and are tormented by the undead after their mother dies. It has achieved cult status among fans of Asian horror films, principally because it has been unavailable for many years, except as an obscure Japanese VHS pressing with no English subtitles. In 2006, Brentwood Home Video, a specialist US label, released an uncut print on DVD for retail release as part of its Eastern Horror series. Among Western fans, it is notable for being one of the few classic horror films to substitute Christian or Buddhist themes for Muslim beliefs.

A remake, directed by Joko Anwar, was released on September 28, 2017, and it was a box office success met with mainstream critical acclaim. In May 2020, Severin Films released Satan's Slave on Blu-ray with a new scan of the original negative and new interviews with producer Gope T. Samtani, screenwriter Imam Tantowi, and remake director Joko Anwar.