List of highways numbered 103
Highway 103 can refer to multiple roads:
Belgium
- N103
Canada
- New Brunswick Route 103
- Nova Scotia Provincial Highway 103
- Ontario Highway 103
- Prince Edward Island Route 103
China
- China National Highway 103
Costa Rica
- National Route 103
Croatia
- D103 road
Germany
- Bundesautobahn 103
India
- National Highway 103
Ireland
- R103 road
Japan
- Japan National Route 103
Nigeria
- F103 highway
Philippines
- N103 highway
South Africa
- R103
United Kingdom
- road in north London.
United States
- Alabama State Route 103
- * County Route 103
- Arkansas Highway 103
- California State Route 103
- Colorado State Highway 103
- Connecticut Route 103
- Florida State Road 103
- * County Road 103
- Georgia State Route 103
- Illinois Route 103
- Indiana State Road 103
- Iowa Highway 103
- K-103
- Kentucky Route 103
- Louisiana Highway 103
- Maine State Route 103
- Maryland Route 103
- *Maryland Route 103A
- *Maryland Route 103C
- Massachusetts Route 103
- M-103
- Minnesota State Highway 103
- * County Road 103
- Missouri Route 103
- Nebraska Highway 103
- New Hampshire Route 103
- * New Hampshire Route 103A
- County Route 103
- New Mexico State Road 103
- New York State Route 103
- * County Route 103
- * County Route 103
- * County Route 103
- * County Route 103
- * County Route 103
- * County Route 103
- * County Route 103
- * County Route 103
- * County Route 103
- * County Route 103
- * County Route 103
- * County Route 103
- * County Route 103
- ** County Route 103A
- ** County Route 103B
- * County Route 103
- * County Route 103
- North Carolina Highway 103
- Ohio State Route 103
- Oklahoma State Highway 103
- Oregon Route 103
- Pennsylvania Route 103
- Rhode Island Route 103
- * Rhode Island Route 103A
- Tennessee State Route 103
- Texas State Highway 103
- * Texas State Highway Spur 103
- * Farm to Market Road 103
- Utah State Route 103
- Vermont Route 103
- Virginia State Route 103
- * Virginia State Route 103
- Washington State Route 103
- West Virginia Route 103
- Wisconsin Highway 103