The following highways are numbered 38:
Australia A38 (Sydney)
Canada Alberta Highway 38 Ontario Highway 38 (former) Saskatchewan Highway 38
Czech Republic I/38 Highway; Czech: Silnice I/38
Germany Bundesautobahn 38
Greece EO38 road
India National Highway 38 (India)
Iran
Israel Highway 38 (Israel)
Italy State road 38
Japan Japan National Route 38 Dōtō Expressway
Korea, South National Route 38
Malaysia
Johor Bahru Eastern Dispersal Link Expressway (also used as E14)
New Zealand New Zealand State Highway 38
United Kingdom British A38 (Bodmin-Mansfield)
United States U.S. Route 38 (former) Alabama State Route 38 County Route 38 (Lee County, Alabama) Arkansas Highway 38 California State Route 38 County Route J38 (California) Colorado State Highway 38 (former) Georgia State Route 38 Hawaii Route 38 (former) Idaho State Highway 38 Illinois Route 38 Indiana State Road 38 Iowa Highway 38 K-38 (Kansas highway) (former) Kentucky Route 38 Louisiana Highway 38 Maryland Route 38 Massachusetts Route 38 M-38 (Michigan highway) Minnesota State Highway 38 Missouri Route 38 Montana Highway 38 Nebraska Highway 38 (former) Nebraska Highway 38C (former) Nevada State Route 38 (former) New Hampshire Route 38 New Jersey Route 38 County Route 38 (Bergen County, New Jersey) County Route 38 (Monmouth County, New Jersey) County Route 38 (Ocean County, New Jersey) New Mexico State Road 38 New York State Route 38 County Route 38 (Cayuga County, New York) County Route 38 (Chemung County, New York) County Route 38 (Dutchess County, New York) County Route 38 (Essex County, New York) County Route 38 (Genesee County, New York) County Route 38 (Greene County, New York) County Route 38 (Livingston County, New York) County Route 38 (Madison County, New York) County Route 38 (Montgomery County, New York) County Route 38 (Orange County, New York) County Route 38 (Putnam County, New York) County Route 38 (Rensselaer County, New York) County Route 38 (Rockland County, New York) County Route 38 (St. Lawrence County, New York) County Route 38 (Suffolk County, New York) County Route 38 (Warren County, New York) County Route 38 (Wyoming County, New York) North Carolina Highway 38 North Dakota Highway 38 Ohio State Route 38 Oklahoma State Highway 38 Oregon Route 38 Pennsylvania Route 38 South Carolina Highway 38 South Dakota Highway 38 Tennessee State Route 38 Texas State Highway 38 (former) Texas State Highway Loop 38 (former) Texas State Highway Spur 38 Farm to Market Road 38 Texas Park Road 38 Utah State Route 38 Vermont Route 38 Virginia State Route 38 Virginia State Route 38 (1923-1933) (former) West Virginia Route 38 Wisconsin Highway 38
Territories Puerto Rico Highway 38 U.S. Virgin Islands Highway 38
See also List of highways numbered 38A List of highways numbered 38B