A Letter to Three Wives is a 1949 film which tells the story of a woman who mails a letter to three women, telling them she has left town with the husband of one of them. It stars Jeanne Crain, Linda Darnell, Ann Sothern, Kirk Douglas and Paul Douglas.

The movie was adapted by Vera Caspary and Joseph L. Mankiewicz from the novel Letter to Five Wives by John Klempner . It was directed by Mankiewicz.

It won Academy Awards for Best Director and Best Writing, Screenplay and was nominated for Best Picture.