Riders of the Purple Sage is a 1925 American silent Western film directed by Lynn Reynolds and starring Tom Mix, Mabel Ballin, and Warner Oland.

Based on the 1912 novel Riders of the Purple Sage by Zane Grey, the film is about a former Texas Ranger who pursues a corrupt lawyer who abducted his married sister and niece.

[3] When corrupt lawyer Lew Walters (Warner Oland) is run out of a Texas town, he abducts Millie Erne (Beatrice Burnham) and her young daughter Bess and forces them to accompany him, leaving behind a heartbroken husband and father.

Jane is attracted to the stranger after he rescues her chief rider, Bern Venders (Harold Goodwin), from being flogged for a crime he did not commit.

Soon after, a posse is formed and goes after Lassiter, who flees with Jane and her adopted ward, Fay Larkin (Dawn O'Day), into the mountains surrounding Surprise Valley.

The reviewer for The New York Times criticized the film's lack of entertainment quality, while acknowledging Tom Mix's appeal and attraction to his fans.

As usual, Mix is well-served by Lynn Reynolds, his favorite director at Fox, and a strong supporting cast that includes Warner Oland as the kidnapper and debaucher Lew Walters, Beatrice Burnham as Lassiter's ill-fated sister-in-law, and Mabel Ballin as the imperiled Jane Withersteen.