The Last Straw is a lost 1920 American silent Western film directed by Denison Clift and Charles Swickard and starring Buck Jones, Vivian Rich, and Jane Talent.

Hepburn (Le Moyne), whom Tom suspects of conniving with cattle rustlers in their attempt to gain part of the H O ranch, is made foreman.

Dick Hilton (Kenny), an insipid New York millionaire who Jane had refused to marry after becoming financially dependent, follows her to Montana.

Dick then turns his attentions on Bobby (Talent), the daughter of the squatter Alf Cole who is the tool of the rustlers.

While he is absent from the ranch, the other men capture the squatter Alf, and he is put on trial with Jane acting as judge.