Oyen is a town in east-central Alberta, Canada near the Saskatchewan boundary and north of Medicine Hat. It is on Highway 41, 4 km south of its junction with Highway 9. Early name, Bishopburg, was changed in 1912 to honour Andrew Oyen, an early settler who sold his homestead for the townsite. Oyen is the service centre for a large but sparsely populated dryland farming area. In the surrounding area wheat, barley, and canola are important crops, and beef cattle are raised.