The Common Law is a 1931 American pre-Code romantic drama film directed by Paul L. Stein, produced by Charles R. Rogers and starring Constance Bennett and Joel McCrea. Based on Robert W. Chambers' 1911 novel of the same name, the film was the third film adaptation of the book, and the first during the sound-film era. It was received well both at the box office and by film critics, becoming one of RKO's most financially successful films of the year.