Mary Carr (March 14, 1874 – June 24, 1973) was an American film actress and was married to the actor William Carr (1866–1937). She appeared in 144 films between 1915 and 1956. She was given some of filmdoms plum mother roles in silent pictures, especially Fox's 1920 Over the Hill to the Poorhouse which was a great success. She was interred in Calvary Cemetery. Carr bore a strong resemblance to Lucy Beaumont, another famous character actress of the time who specialized in mother roles.