Halo Legends is a 2010 German-American-Japanese adult animated military science fiction anthology film produced by 343 Industries. The anime compiles seven animated short films, detailing the backstory of the Halo universe, in addition to providing side stories that expand the universe and tie into the film series. Following the same pattern that other films such as The Animatrix and Batman: Gotham Knight used, the animated movies were created by six Japanese anime production houses: Bee Train, Bones, Casio Entertainment, Production I.G., Studio 4°C, and Toei Animation. Shinji Aramaki, creator and director of Appleseed and Appleseed Ex Machina, serves as the project's creative advisor. Warner Bros. released Legends on DVD and Blu-ray Disc on February 16, 2010.

Halo is a military science fiction media franchise, originally developed and created by Bungie and currently managed and developed by 343 Industries, part of Microsoft's Xbox Game Studios. The series launched in 2001 with the first-person shooter video game Halo: Combat Evolved and its tie-in novel, The Fall of Reach. The latest main game, Halo Infinite, was released in late 2021.