One Piece Movie: The Desert Princess and the Pirates: Adventures in Alabasta (Japanese: ONE PIECE エピソードオブアラバスタ 砂漠の王女と海賊たち, Hepburn: Wan Pīsu: Episōdo Obu Arabasuta: Sabaku no Ōjo to Kaizokutachi, lit. One Piece: Episode of Alabasta: The Desert Princess and the Pirates) is a 2007 Japanese anime action adventure fantasy film directed by Takahiro Imamura and written by Hirohiko Kamisama. It is the eighth film in the One Piece media franchise, adapting a story arc from the original manga by Eiichiro Oda, wherein the Straw Hat Pirates travel to the Kingdom of Alabasta to save the war-and drought-plagued country from Sir Crocodile and his secret crime syndicate Baroque Works.

In Japan, the film was released on March 3, 2007, where it was shown alongside the Dr. Slump short Dr. Mashirito and Abale-chan. It peaked at second place of the weekend box office and grossed $7,075,924. Worldwide, the film has grossed a total of $7,090,891. The film was briefly shown at select theaters across the United States, before it was released on DVD in North America on February 19, 2008, and the Blu-ray released on January 27, 2009.