The following highways are numbered 314:

Canada

• Manitoba Provincial Road 314
• Prince Edward Island Route 314

China

• China National Highway 314

Costa Rica

• National Route 314

India

• National Highway 314 (India)

Japan

• Japan National Route 314

United States

• Arkansas Highway 314
• Connecticut Route 314
• Florida State Road 314 (former)
• Georgia State Route 314
• Iowa Highway 314 (former)
• Louisiana Highway 314
• Maryland Route 314
• Mississippi Highway 314
• Montana Secondary Highway 314
• New Mexico State Road 314
• New York State Route 314
  • New York State Route 314 (former)
• Ohio State Route 314
• Pennsylvania Route 314
• South Carolina Highway 314
• South Dakota Highway 314
• Tennessee State Route 314
• Texas:
  • Texas State Highway 314 (former)
  • Farm to Market Road 314
• Utah State Route 314
• Vermont Route 314
• Virginia State Route 314
  • Virginia State Route 314 (former)
• Wyoming Highway 314

Other areas:

• Puerto Rico Highway 314
• U.S. Virgin Islands Highway 314