Oyen is a town in east-central Alberta, Canada near the Saskatchewan boundary and north of Medicine Hat.

[5] 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.

Oyen's precipitation is narrowly below being a humid continental climate, a type it closely resembles in terms of yearly temperatures.

It is developed with a service station, A&W restaurant, a motel and a visitor information centre operated by Travel Alberta.