List of highways numbered 431
Route 431, or Highway 431, may refer to:
Canada
- Newfoundland and Labrador Route 431
Cuba
- Callejero de Reparto Universitario
Hungary
- Main road 431
India
- National Highway 431
Israel
- Highway 431
Japan
- Japan National Route 431
United States
- U.S. Route 431
- Florida:
- * Florida State Road 431
- ** Florida State Road 431B
- * County Road 431
- * County Road 431B
- Indiana State Road 431
- Iowa Highway 431
- Nevada State Route 431
- New York State Route 431
- Puerto Rico Highway 431
- Tennessee State Route 431
- Texas:
- * Texas State Highway Loop 431
- * Farm to Market Road 431
- Washington State Route 431
- Wyoming Highway 431