Beau Geste is a 1966 adventure film based on the 1924 novel by P. C. Wren filmed by Universal Pictures in Technicolor and Techniscope near Yuma, Arizona and directed by Douglas Heyes. This is the least faithful of the various film adaptations of the original novel. In this version, there are only two brothers, rather than three, and there are no sequences showing Beau's life prior to his joining the Legion.

Beau Geste is an adventure novel by British writer P. C. Wren, which details the adventures of three English brothers who enlist separately in the French Foreign Legion following the theft of a valuable jewel from the country house of a relative. Published in 1924, the novel is set in the period before World War I. It has been adapted for the screen several times.