List of highways numbered 346

Australia

Canada

• Manitoba [Provincial Road 346]
• Newfoundland and Labrador Route 346
• Quebec Route 346

  Japan

• Japan [National Route 346]

  United States

• Georgia [State Route 346]
• Iowa Highway 346
• Kentucky Route 346
• Louisiana Highway 346
• Maryland Route 346
• New York:
• * New York State Route 346
• * County Route 346 (Erie County, New York)
• * County Route 346 (Wayne County, New York)
• Pennsylvania Route 346
• Puerto Rico Highway 346
• South Carolina Highway 346
• Tennessee State Route 346
• Texas:
• * Texas [State Highway 346]
• * Farm to Market Road 346
• Vermont Route 346
• Virginia State Route 346