An Adventure in Hearts is a lost 1919 American silent adventure film directed by James Cruze and written by Elmer Blaney Harris based upon the 1918 novel Captain Dieppe by Anthony Hope and the resulting play by Hope and Harrison Garfield Rhodes. The film stars Robert Warwick, Juan de la Cruz, Winifred Greenwood, Helene Chadwick, Walter Long, and Howard Gaye. The film was released on December 7, 1919, by Paramount Pictures.