List of highways numbered 366

Canada

• Manitoba Provincial Road 366
• Nova Scotia Route 366
• Quebec Route 366

  India

• National Highway 366

  Japan

• Route 366

  United States

• U.S. Route 366
• * U.S. Route 366
• * U.S. Route 366
• Arizona State Route 366
• Florida State Road 366
• Georgia State Route 366
• Hawaii Route 366
• Louisiana Highway 366
• Maryland Route 366
• Mississippi Highway 366
• Missouri Route 366
• New York State Route 366
• Ohio State Route 366
• Pennsylvania Route 366
• Texas State Highway Spur 366
• Virginia State Route 366

• Puerto Rico Highway 366