Riders of the Purple Sage is a Western novel by Zane Grey, first published by Harper & Brothers in 1912. Considered by scholars to have played a significant role in shaping the formula of the popular Western genre, the novel has been called "the most popular western novel of all time".

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. His search leads him to a remote Arizona ranch and the love of a good woman.