Seth Holt (1923, Palestine – 14 February 1971, London) was a British film director, producer and editor.
Originally a film editor, he worked on a number of Ealing comedies before directing a number of features for Hammer Studios. The most enduring of the Hammer movies were the psycho-thrillers Taste of Fear (1961) and The Nanny (1965), with Bette Davis, and the gory Blood from the Mummy's Tomb (1971), which was completed by Michael Carreras after Holt's unexpected death from heart failure. He produced a documentary called Barbed Water which was about the whalers of Faial in the Azores.
His films are characterized by their tense atmosphere and suspense, as well as their striking visual style.