Wyoming Highway 239 is a state road that in Lincoln County, Wyoming connects US 89 and Idaho Highway 34 at the Idaho State Line.

Wyoming Highway 239 travels from the Idaho State Line at Freedom east to US 89, just east of Freedom, between Etna and Thayne.

WYO 239 becomes Idaho Highway 34 when the roadway crosses the state line. ID 34 serves Soda Springs, Idaho.

The entire route is in Lincoln County.