The following highways are numbered 239:
Australia
Borung Highway
Canada
Manitoba Provincial Road 239
Newfoundland and Labrador Route 239
Nova Scotia Route 239
Prince Edward Island Route 239
Quebec Route 239
Costa Rica
National Route 239
Japan
Japan National Route 239
United States
Arkansas Highway 239
Arkansas Highway 239 Spur
Alabama State Route 239
California State Route 239
Colorado State Highway 239
Florida State Road 239 (former) Georgia State Route 239 (former) Iowa Highway 239 (former) K-239 (Kansas highway) Kentucky Route 239 Maryland Route 239 M-239 (Michigan highway) Montana Secondary Highway 239 New York State Route 239 (former) Ohio State Route 239 Pennsylvania Route 239 South Dakota Highway 239 Tennessee State Route 239 Texas State Highway 239 Texas State Highway Loop 239 Texas State Highway Spur 239 Utah State Route 239 (former) Virginia State Route 239 Wyoming Highway 239