North of the Rio Grande is a 1937 American Western film directed by Nate Watt and written by Joseph O'Donnell.

The film stars William Boyd, George "Gabby" Hayes, Russell Hayden, Morris Ankrum, Bernadene Hayes and Jack Rutherford.

Hoppy plans to enter town anonymously as an outlaw and work from that premise.

Hoppy arrives posing as an outlaw to avenge his brother's killing by Plunkett.

After robbing a train and killing Plunkett, he gets to meet the boss known as the Lone Wolf and lead his next job.