Orca (also called Orca: The Killer Whale) is a 1977 horror film directed by Michael Anderson and produced by Dino De Laurentiis, starring Richard Harris, Charlotte Rampling, and Will Sampson. It is based on Arthur Herzog's novel of the same name.

Captain Nolan (Oscar® nominee Richard Harris, Harry Potter and The Sorcerer's Stone) is a man of the sea. Brave and headstrong, he is a fisherman who takes up the fight of his life against one of nature’s most fearsome creatures – the killer whale. Orca seeks to avenge the death of his pregnant mate, left murdered in blood red waters. Rising from the ocean, leaving behind it a wake of destruction and mayhem, the deadly marine creature lures his human adversaries to a match of wits and survival in the chilly arctic waters.   Also starring Bo Derek (10), Charlotte Rampling (The Night Porter), Will Sampson (One Flew Over the Cuckoo's Nest), Keenan Wynn (Dr. Strangelove) and Robert Carradine (Django Unchained) and featuring the music of award winning composer Ennio Morricone,  ORCA is a thrilling aquatic adventure of breathtaking scope.