List of highways numbered 145

• Alabama State Route 145
• Arkansas Highway 145
• California State Route 145
• Colorado State Highway 145
• Connecticut Route 145
• County Road 145 (Hamilton County, Florida)
• County Route 145 (Broome County, New York)
• County Route 145 (California)
• County Route 145 (Fulton County, New York)
• County Route 145 (Herkimer County, New York)
• County Route 145 (Rensselaer County, New York)
• County Route 145 (Schenectady County, New York)
• Farm to Market Road 145
• Florida State Road 145
• Georgia State Route 145
• Hawaii Route 145
• Illinois Route 145
• Indiana State Road 145
• Iowa Highway 145
• Japan National Route 145
• Kentucky Route 145
• Louisiana Highway 145
• M-145 (Michigan highway)
• Maine State Route 145
• Malaysia Federal Route 145
• Maryland Route 145
• Massachusetts Route 145
• Mississippi Highway 145
• Missouri Route 145
• National Route 145 (Costa Rica)
• New Brunswick Route 145
• New Hampshire Route 145
• New Mexico State Road 145
• New York State Route 145
• North Carolina Highway 145
• Ohio State Route 145
• Oklahoma State Highway 145
• Pennsylvania Route 145
• Prince Edward Island Route 145
• Puerto Rico Highway 145
• South Carolina Highway 145
• Tennessee State Route 145
• Texas State Highway 145
• Texas State Highway Loop 145
• Texas State Highway Spur 145
• Utah State Route 145
• Utah State Route 145 (1933-1969)
• Virginia State Route 145
• Winnipeg Route 145
• Wisconsin Highway 145