The Comancheros is a 1961 American CinemaScope Western film directed by Michael Curtiz, based on a 1952 novel of the same name by Paul Wellman, and starring John Wayne and Stuart Whitman. The supporting cast includes Ina Balin, Lee Marvin, Nehemiah Persoff, Bruce Cabot, Jack Elam, Joan O'Brien, Patrick Wayne, and Edgar Buchanan. Also featured are Western-film veterans Bob Steele, Guinn "Big Boy" Williams, and Harry Carey, Jr. in uncredited supporting roles.

When terminal illness prevented Curtiz (director of Casablanca and The Adventures of Robin Hood) from finishing the film, Wayne took over as director, though his direction remained uncredited. Curtiz died shortly after the film was completed.