Kick In is a 1917 silent film crime melodrama directed by George Fitzmaurice and starring William Courtenay. It is based on the 1914 Broadway play of the same name by Willard Mack. Fitzmaurice and Ouida Bergère, who adapted the play to the screen, re-adapted the story in 1922.
With no prints of Kick In located in any film archives, it is considered a lost film. In February 2021, the film was cited by the National Film Preservation Board on their Lost U.S. Silent Feature Films list.