The Last Outpost is a 1951 American Technicolor Western film directed by Lewis R. Foster, set in the American Civil War with brothers on opposite sides. The film is character actor Burt Mustin's film debut at the age of 67.

The film earned an estimated $1,225,000 at the US box office in 1951. The Last Outpost had the distinction of being the most successful film for the prolific B movie company, Pine-Thomas Productions. The film was re-released in 1962 by Citation Films Inc. under the title Cavalry Charge.