List of highways numbered 45

International

• Asian Highway 45
• European route E45
• AH45A|Asian Highway 45A

  Burma

• National Road 45

  Canada

• Alberta Highway 45
• Manitoba Highway 45
• Saskatchewan Highway 45

  China

• G45 Expressway
• Asian Highway 45A

  France

• A45 autoroute

  Germany

• Bundesautobahn 45

  India

• National Highway 45

  Iran

• Road 45

  Japan

• Route 45

  Korea, South

• Jungbu Naeryuk Expressway
• National Route 45

  Mexico

• Mexican Federal Highway 45

  New Zealand

• New Zealand State Highway 45

  United Kingdom

• British A45
• British M45

  United States

• Interstate 45
• U.S. Route 45
• * U.S. Route 45E
• * U.S. Route 45W
• Alabama State Route 45
• Arkansas Highway 45
• California State Route 45
• Colorado State Highway 45
• Connecticut Route 45
• Florida State Road 45
• * Florida State Road 45A
• Georgia State Route 45
• * Georgia State Route 45
• Idaho State Highway 45
• Illinois Route 45
• Indiana State Road 45
• Iowa Highway 45
• K-45
• Louisiana Highway 45
• Maryland Route 45
• *Maryland Route 45A
• *Maryland Route 45B
• *Maryland Route 45C
• *Maryland Route 45D
• *Maryland Route 45E
• Massachusetts Route 45
• M-45
• Minnesota State Highway 45
• Missouri Route 45
• Nebraska Highway 45
• * Nebraska Link 45B
• * Nebraska Spur 45A
• Nevada State Route 45
• New Hampshire Route 45
• New Jersey Route 45
• * County Route 45
• New Mexico State Road 45
• New York State Route 45
• * County Route 45
• * County Route 45A
• **County Route 45B
• * County Route 45
• * County Route 45
• * County Route 45
• * County Route 45
• * County Route 45
• * County Route 45
• * County Route 45
• * County Route 45
• * County Route 45
• * County Route 45
• * County Route 45
• * County Route 45
• * County Route 45
• * County Route 45
• * County Route 45
• ** County Route 45A
• * County Route 45
• * County Route 45
• North Carolina Highway 45
• North Dakota Highway 45
• Ohio State Route 45
• Oklahoma State Highway 45
• Pennsylvania Route 45
• South Carolina Highway 45
• South Dakota Highway 45
• Tennessee State Route 45
• Texas State Highway 45
• * Texas State Highway Spur 45
• * Farm to Market Road 45
• * Texas Park Road 45
• Utah State Route 45
• Virginia State Route 45
• West Virginia Route 45
• Wisconsin Highway 45