Turistas (; English: Tourists, released in the United Kingdom and Ireland as Paradise Lost) is a 2006 American horror film produced and directed by John Stockwell and starring Josh Duhamel, Melissa George, Olivia Wilde, Desmond Askew, Max Brown, and Beau Garrett. Its plot focuses on a group of international backpackers in Brazil who find themselves in the clutches of an underground organ harvesting ring.

It was the first American film to be exclusively shot in Brazil. It was also the first film distributed by Fox Atomic, a subsidiary of 20th Century Fox, who released it theatrically in the United States on December 1, 2006.