The Trespasser is a 1929 American pre-Code film written and directed by Edmund Goulding and starring Gloria Swanson, Robert Ames, Purnell Pratt, Henry B. Walthall, and Wally Albright.

Marion Donnell, a stenographer in Chicago (Gloria Swanson) elopes with wealthy Jack Merrick (Robert Ames).

Unable to meet her bills and provide support she becomes a "kept woman" for her employer, Hector Ferguson (Purnell Pratt) an older, married man.

When Ferguson collapses, suddenly at his club, his wife (Mary Forbes) calls for Marion, telling her that he has asked for her at his deathbed.

However, Flip comes to visit Marion; having been injured in an automobile accident on a honeymoon trip to France, she requires a wheelchair and is unable to bear children.

Despite the disappointments following The Trespasser, Swanson was remembered by Billy Wilder, a screenwriter on Music in the Air (1934), when he was casting the part of Norma Desmond for Sunset Boulevard (1950).