Saturday the 14th is a 1981 American comedy horror film starring real-life husband and wife Paula Prentiss and Richard Benjamin, co-written and directed by Howard R. Cohen and produced by Julie Corman.

Despite the implications of the film's title, it is a spoof of classic horror movies from the 1930s and 1940s, and not a parody of the Friday the 13th series or of slasher films of that type from the 1980s. It was followed by Saturday the 14th Strikes Back in 1988.

In the film, the Hyatt family inherits the house of a deceased uncle, and its magical book. The family's son reads the book and unwittingly unleashes monsters from its pages. The family has interactions with the vampire Waldemar and the would-be world-conqueror Van Helsing, who each want to acquire the book.