North West Mounted Police is a 1940 American epic north-western film produced and directed by Cecil B. DeMille and starring Gary Cooper and Madeleine Carroll. Written by Alan Le May, Jesse Lasky Jr., and C. Gardner Sullivan, and based on the 1938 novel The Royal Canadian Mounted Police by R. C. Fetherstonhaugh, the film is about a Texas Ranger who joins forces with the North-West Mounted Police to put down a rebellion in the north-west prairies of Canada. The supporting cast features Paulette Goddard, Preston Foster, Robert Preston, Akim Tamiroff, Lon Chaney Jr. and George Bancroft. Regis Toomey, Richard Denning, Rod Cameron, and Robert Ryan make brief appearances in the film playing small roles.

North West Mounted Police was DeMille's first film in Technicolor. The film premiered on October 21, 1940 in Regina, Saskatchewan. The film received an Academy Award for Best Film Editing (Anne Bauchens).