List of highways numbered 78

The following highways are numbered 78:

International

• AH78 Asian Highway 78
• European route E78

Australia

• Waterfall Way- New South Wales State Route 78

China

• G78 Expressway

Iran

• Road 78

Korea, South

• Gukjido 78

New Zealand

• New Zealand State Highway 78 - New Zealand's shortest State Highway

United States

• Interstate 78
• U.S. Route 78
• Alabama State Route 78
• Arizona State Route 78
• California State Route 78
• Colorado State Highway 78
• Connecticut Route 78
• Florida State Road 78
• Georgia State Route 78
• Hawaii Route 78 (former)
• Illinois Route 78
• Iowa Highway 78
• K-78 (Kansas highway)
• Kentucky Route 78
• Louisiana Highway 78
• Maryland Route 78 (former)
• Massachusetts Route 78
• M-78 (Michigan highway)
• Minnesota State Highway 78
• Missouri Route 78
• Montana Highway 78
• Nebraska Highway 78
• Nevada State Route 78 (former)
• New Hampshire Route 78
• New Mexico State Road 78
• New York State Route 78
• North Carolina Highway 78
• Ohio State Route 78
• Oklahoma State Highway 78
• Oregon Route 78
• Pennsylvania Route 78 (former)
• Rhode Island Route 78
• Tennessee State Route 78
• Texas State Highway 78
  • Texas State Highway Spur 78
  • Farm to Market Road 78 (Texas)
  • Urban Road 78 (signed as Farm to Market Road 78)
• Utah State Route 78
• Vermont Route 78
• Virginia State Route 78
• West Virginia Route 78
• Wisconsin Highway 78
• Wyoming Highway 78

Territories:

• U.S. Virgin Islands Highway 78