List of highways numbered 334

Canada

• Manitoba Provincial Road 334
• Newfoundland and Labrador Route 334
• Nova Scotia Route 334
• Prince Edward Island Route 334
• Saskatchewan Highway 334

  Costa Rica

• National Route 334

  India

• National Highway 334

  Japan

• Japan National Route 334

  United States

• Connecticut Route 334
• Georgia State Route 334
• Indiana State Road 334
• Maryland Route 334
• New York:
• * New York State Route 334
• * County Route 334
• * County Route 334
• Ohio State Route 334
• Oregon Route 334
• Puerto Rico Highway 334
• Tennessee State Route 334
• Texas:
• * Texas State Highway 334
• * Texas State Highway Loop 334
• Virginia State Route 334
• Wyoming Highway 334