The Crystal Cup is a 1927 American drama film directed by John Francis Dillon and written by Gerald Duffy and Mort Blumenstock. It is based on the 1925 novel The Crystal Cup by Gertrude Atherton. The film stars Dorothy Mackaill, Rockliffe Fellowes, Jack Mulhall, Clarissa Selwynne, Jane Winton and Edythe Chapman. The film was released on October 16, 1927, by First National Pictures.