List of highways numbered 312

Template:Short description The following highways are numbered 312:

Canada

• File:Manitoba secondary 312.svg Manitoba Provincial Road 312
• File:Nova Scotia Route 312.svg Nova Scotia Route 312
• File:PEI Highway 312.svg Prince Edward Island Route 312
• File:Saskatchewan Highway 312 (jct).svg Saskatchewan Highway 312

China

• File:Kokudou 312(China).svg China National Highway 312

Costa Rica

• File:CR RNT 312.svg National Route 312

Cuba

• File:1–312 Cuba.png Road to Las Palacios (1–312)

Japan

• File:Japanese National Route Sign 0312.svg Japan National Route 312

United States

• File:US 312.svg U.S. Route 312 (former)
• File:Arkansas 312.svg Arkansas Highway 312
• File:Florida 312.svg Florida State Road 312
• File:Georgia 312.svg Georgia State Route 312 (former)
• File:Indiana 312.svg Indiana State Road 312
• File:Elongated circle 312.svg Kentucky Route 312
• File:Louisiana 312.svg Louisiana Highway 312
• File:MD Route 312.svg Maryland Route 312
• File:MN-312.svg Minnesota State Highway 312 (former)
• File:New Mexico 312.svg New Mexico State Road 312
• New York:
  • File:NY-312.svg New York State Route 312
  • New York State Route 312 (former)
  • County Route 312 (Albany County, New York)
  • County Route 312 (Wayne County, New York)
• File:OH-312.svg Ohio State Route 312
• File:PA-312.svg Pennsylvania Route 312 (former)
• File:Ellipse sign 312.svg Puerto Rico Highway 312
• File:Secondary Tennessee 312.svg Tennessee State Route 312
• Texas:
  • File:Texas 312.svg Texas State Highway 312 (proposed)
  • File:Texas Spur 312.svg Texas State Highway Spur 312
• File:Texas FM 312.svg Farm to Market Road 312
• File:Utah SR 312.svg Utah State Route 312
• File:Virginia 312.svg Virginia State Route 312
• File:WIS 312.svg Wisconsin Highway 312
• File:WY-312.svg Wyoming Highway 312