List of highways numbered 40

International

• European route E40

  Australia

• NSW State Route 40
• Victorian State Route 40
• Mulligan Highway

  Argentina

• National Route 40

  Canada

• Alberta Highway 40
• Newfoundland and Labrador Route 40
• Ontario Highway 40
• Quebec Autoroute 40
• Saskatchewan Highway 40

  China

• G40 Expressway

  Czech Republic

• I/40 Highway; Czech: :cz:Silnice I/40|Silnice I/40

  Iceland

• Route 40

  India

• Israel

• Highway 40

  Japan

• Japan National Route 40

  Jordan

Korea, South

• Pyeongtaek–Jecheon Expressway
• National Route 40

  Saudi Arabia

• Highway 40

  Sweden

• Swedish road 40, formerly Swedish national road 40 connecting Göteborg, Borås, and Jönköping

  Mexico

• Mexican Federal Highway 40

  United Kingdom

• British A40
• British M40

  United States

• Interstate 40
• * Interstate 40 Business
• U.S. Route 40
• * U.S. Route 40N
• * U.S. Route 40S
• Alabama State Route 40
• Arkansas Highway 40
• Colorado State Highway 40
• Connecticut Route 40
• Florida State Road 40
• * County Road 40
• * County Road 40
• Georgia State Route 40
• Hawaii Route 40
• Idaho State Highway 40
• Illinois Route 40
• Kentucky Route 40
• Louisiana Highway 40
• Massachusetts Route 40
• M-40
• Minnesota State Highway 40
• * County Road 40
• * County Road 40
• Missouri Route 40
• Montana Highway 40
• Nebraska Highway 40
• * Nebraska Link 40C
• * Nebraska Link 40G
• * Nebraska Spur 40D
• * Nebraska Recreation Road 40E
• Nevada State Route 40
• New Jersey Route 40
• * County Route 40
• * County Route 40
• New Mexico State Road 40
• New York State Route 40
• * County Route 40
• * County Route 40
• * County Route 40
• * County Route 40
• * County Route 40
• * County Route 40
• * County Route 40
• * County Route 40
• * County Route 40
• * County Route 40
• * County Route 40
• * County Route 40
• * County Route 40
• * County Route 40
• * County Route 40
• * County Route 40
• North Carolina Highway 40
• North Dakota Highway 40
• Ohio State Route 40
• Oklahoma State Highway 40
• South Carolina Highway 40
• South Dakota Highway 40
• Tennessee State Route 40
• *APD-40
• Texas State Highway 40
• * Texas State Highway Loop 40
• * Farm to Market Road 40
• * Urban Road 40
• * Texas Park Road 40
• Utah State Route 40
• Virginia State Route 40
• * Virginia State Route 40
• West Virginia Route 40
• Wisconsin Highway 40

• Puerto Rico Highway 40
• U.S. Virgin Islands Highway 40