Beware of a Holy Whore (German: Warnung vor einer heiligen Nutte) is a 1971 West German drama film written and directed by Rainer Werner Fassbinder that features Lou Castel, Eddie Constantine, Hanna Schygulla and Fassbinder himself. Fassbinder considered this to be his favorite of his own films.

While in a hotel with too much drink, drugs and time, the cast and crew of a film are gradually unravelling as they await the arrival of their director. Semi-autobiographical, the film was influenced by the shooting of the director's earlier Whity in Spain. The film features music from Leonard Cohen's first album Songs of Leonard Cohen and from Spooky Two by Spooky Tooth, among others.