Orca (also known as Orca: The Killer Whale) is a 1977 American thriller film directed by Michael Anderson and produced by Dino De Laurentiis, starring Richard Harris, Charlotte Rampling and Will Sampson. The film follows a male orca tracking down and getting revenge on a fishing boat and its captain for killing the whale's pregnant mate and their unborn calf.

Upon release, the film was a minor box office success, but received mostly unfavorable reception from critics and audiences alike due to its similarities to the film Jaws, released two years prior.

In 2004, Paramount Home Entertainment released Orca on Region A DVD. In 2017, Umbrella Entertainment released Orca on Region B Blu-ray with a new 4-minute interview with Martha De Laurentiis. On June 30, 2020, Scream Factory released Orca on Region A Blu-ray with an improved video transfer.