The following highways are numbered 137:
Canada
Ontario Highway 137
Prince Edward Island Route 137
Quebec Route 137
Costa Rica
National Route 137
Japan
Japan National Route 137
Fukuoka Prefectural Route 137
Nara Prefectural Route 137
Malaysia
Malaysia Federal Route 137
United States
Alabama State Route 137
Arkansas Highway 137
California State Route 137
Connecticut Route 137
Florida State Road 137 (former) County Road 137 (Hamilton County, Florida) County Road 137 (Suwannee County, Florida) Georgia State Route 137 Hawaii Route 137 Illinois Route 137 Iowa Highway 137 K-137 (Kansas highway) Kentucky Route 137 Louisiana Highway 137 (former) Maine State Route 137 Maryland Route 137 Massachusetts Route 137 M-137 (Michigan highway) (former) Missouri Route 137 Nebraska Highway 137 New Hampshire Route 137 New Mexico State Road 137 New York State Route 137 County Route 137 (Cortland County, New York) County Route 137 (Erie County, New York) County Route 137 (Fulton County, New York) County Route 137 (Niagara County, New York) County Route 137 (Schenectady County, New York) County Route 137 (Westchester County, New York) North Carolina Highway 137 Ohio State Route 137 Oklahoma State Highway 137 Pennsylvania Route 137 (former) South Carolina Highway 137 Tennessee State Route 137 Texas State Highway 137 Texas State Highway Loop 137 (two former highways) Farm to Market Road 137 Utah State Route 137 Virginia State Route 137 Virginia State Route 137 (1930-1932) (former) Wisconsin Highway 137 Wyoming Highway 137 (former)