Anatahan (アナタハン), also known as The Saga of Anatahan, is a 1953 black-and-white Japanese film war drama directed by Josef von Sternberg, with special effects by Eiji Tsuburaya. The World War II Japanese holdouts on Anatahan (then part of the South Seas Mandate of Imperial Japan, now one of the Northern Mariana Islands of the United States) also inspired a 1998 novel, Cage on the Sea.

It was the final work directed by noted Hollywood director Josef von Sternberg (although Jet Pilot was released later). Von Sternberg had an unusually high degree of control over the film, made outside the studio system, which allowed him to not only direct, but also write, photograph, and narrate the action. Although it opened modestly well in Japan, it did poorly in the US, where von Sternberg continued to recut the film for four more years. He subsequently abandoned the project and went on to teach film at UCLA for most of the remainder of his lifetime. The film was screened within the official selection during the 14th Venice Film Festival (1953).