The Wackiest Wagon Train in the West is a 1976 American Western comedy film directed by Jack Arnold. The film stars Bob Denver as Dusty, the bumbling assistant to Wagonmaster Callahan featured in the syndicated series Dusty's Trail.

The film itself consists of four episodes of Dusty's Trail edited together: "Tomahawk Territory", "Horse of Another Color", "There Is Nothing Like a Dame", and "The Not So Magnificent Seven".