Polly of the Circus is a 1917 American silent drama film notable as the first film produced by Samuel Goldwyn after founding his studio Goldwyn Pictures. This film starred Mae Marsh, usually an actress for D.W. Griffith, but now under contract to Goldwyn for a series of films. The film was based on the 1907 Broadway play Polly of the Circus by Margaret Mayo which starred Mabel Taliaferro. Presumably when MGM remade Polly of the Circus in 1932 with Marion Davies, they still owned the screen rights inherited from the 1924 merger by Marcus Loew of the Metro, Goldwyn, and Louis B. Mayer studios. This film marks the first appearance of Slats, the lion mascot of Goldwyn Pictures and (after the company's 1924 merger) Metro-Goldwyn-Mayer. Prints and/or fragments were found in the Dawson Film Find in 1978.