List of highways numbered 234

• California State Route 234
• Florida State Road 234
• Georgia State Route 234
• Indiana State Road 234
• Japan National Route 234
• K-234 (Kansas highway)
• Kentucky Route 234
• Maine State Route 234
• Manitoba Provincial Road 234
• Maryland Route 234
• Montana Secondary Highway 234
• National Highway 234 (India)
• National Route 234 (Costa Rica)
• New Mexico State Road 234
• New York State Route 234
• Newfoundland and Labrador Route 234
• Oregon Route 234
• Pennsylvania Route 234
• Prince Edward Island Route 234
• Quebec Route 234
• R234 road (Ireland)
• Strada statale 234 Codognese
• Tennessee State Route 234
• Texas State Highway 234
• Texas State Highway Loop 234
• Utah State Route 234
• Virginia State Route 234
• Wyoming Highway 234