The Lone Rider Fights Back is a 1941 American western film directed by Sam Newfield and written by Joseph O'Donnell. The film stars George Houston as the Lone Rider and Al St. John as his sidekick "Fuzzy" Jones, with Dorothy Short, Dennis Moore, Frank Hagney and Charles King. The film was released on December 17, 1941, by Producers Releasing Corporation.

This is the sixth movie in the Lone Rider series, which spans seventeen films—eleven starring George Houston, and a further six starring Robert Livingston.

Houston, once an opera singer, sang two songs in this film: "It's All Over Now" and "Out Where the West Begins". The songs were written by Johnny Lange and Lew Porter.

This is the first appearance of Dennis Moore in the "Lone Rider" series, playing Al Williams. In the next film, The Lone Rider and the Bandit, Moore became a regular in the series, playing Sheriff Smoky Moore for the next six films.