In Old Monterey is a 1939 American Western film directed by Joseph Kane and starring Gene Autry, Smiley Burnette, and June Storey.

Based on a story by Gerald Geraghty and George Sherman, the film is about an army sergeant and former rancher who runs into opposition from local ranchers when the United States Army sends him to purchase their ranch land needed for a strategic air base.

As the ranchers prepare to barricade the town, Gene rides to the rescue with proof that Stevenson was responsible for the explosion and the sabotage.

Angered by the treachery, the ranchers, led by Gene in an armored truck, ride to the Atlas Borax Mine and bring Stevenson and his gang to justice.

Stuntwork for the film was performed by Joe Yrigoyen (Gene's double), Jack Kirk (Smiley's double), Nellie Walker, Henry Morris, Jack Long, Tom Steele, Bill Yrigoyen, Wally West, Art Dillard, Jay Wilsey, Carey Loftin, Charles Thomas, Duke York, George Allen, Eddie Parker, and Bert LeBaron.