Red Mountain is a 1951 American Western film directed by William Dieterle and starring Alan Ladd, Lizabeth Scott, Arthur Kennedy and John Ireland, set in the last days of the US Civil War. The plot centres on an attempt by Quantrill's Raiders to stir up rebellion in the West.

William Dieterle was a German-born actor and film director who emigrated to the United States in 1930 to leave a worsening political situation. He worked in Hollywood primarily as a director for much of his career, becoming a United States citizen in 1937. He moved back to Germany in the late 1950s.