The Adventures of Kathlyn (1913) is an American motion picture serial released on December 29, 1913, by the Selig Polyscope Company. An adventure serial filmed in Chicago, Illinois, its thirteen episodes were directed by Francis J. Grandon from a story by Harold MacGrath and Gilson Willets and starred Kathlyn Williams as the heroine. Harold MacGrath's novel of the same title was released a few days later in January 1914, so as to be in book stores at the same time as the serial was playing in theaters.

The Selig Polyscope Company was an American motion picture company that was founded in 1896 by William Selig in Chicago, Illinois. The company produced hundreds of early, widely distributed commercial moving pictures, including the first films starring Tom Mix, Harold Lloyd, Colleen Moore, and Roscoe "Fatty" Arbuckle. Selig Polyscope also established Southern California's first permanent movie studio, in the historic Edendale district of Los Angeles.