Tentacles (Italian: Tentacoli) is a 1977 horror-thriller film directed by Ovidio G. Assonitis and starring John Huston, Shelley Winters, Bo Hopkins, Cesare Danova, Delia Boccardo and Henry Fonda.

When numerous people go missing in a seaside resort town, a reporter discovers that a rampaging giant octopus is terrorizing the coast. While a marine biologist attempts to stop the octopus before more tourists fall victim to the creature, it appears that a corporation may be connected to the cephalopod's murderous behavior.

Although the film was intended to cash in on the success of Jaws, Tentacles also bears numerous resemblances to the 1955 science fiction giant monster horror film It Came from Beneath the Sea.