National highway or National Highway may refer to:
- National Highway (Australia)
- Trans-Canada Highway system
- China National Highways
- Expressways of China (including National Trunk Highway System)
- National Highway (India)
- National highways of Japan
- National Highways of Pakistan
- Motorways of Switzerland
- National routes (South Africa)
- National highways of South Korea
In the United States:
- National Highway System (United States)
- Interstate Highway System
- United States Numbered Highways
- National Road
- National Old Trails Road
- Interstate 68, called National Freeway in Maryland