List of highways numbered 3

The following highways are numbered 3, H-3, PRI-3, AH3, E03 and R3. For roads numbered A3, see A3 roads. For roads numbered M3, see M3. For roads numbered N3, see N3.

International

• Asian Highway 3
• European route E03
• European route E003
• Tripoli – Cape Town Highway

Albania

• A3 motorway (Albania)
• SH-3 Road in Albania from Kapshtice to Tirana.

Argentina

• National Route 3 (Argentina)

Australia

• former Metroad 3, Brisbane, Queensland
• State Route 3 (Victoria) – Nepean Highway and St Kilda Road, Melbourne
• State Route 3 (Western Australia) – Reid Highway and Roe Highway

Austria

• Südost Autobahn

Belgium

• R3 ring road (Belgium)

Burma

• National Highway 3 (Burma)

Cambodia

• National Highway 3 (Cambodia)

Canada

• Crowsnest Highway (Alberta Highway 3 and British Columbia Highway 3)
• Manitoba Highway 3
• New Brunswick Route 3
• Newfoundland and Labrador Route 3
• Nova Scotia Trunk 3
• Ontario Highway 3
• Prince Edward Island Route 3
• Saskatchewan Highway 3
• Yellowknife Highway (Northwest Territories Highway 3)
• Yukon Highway 3

China

• G3 Expressway

Czech Republic

• D3 motorway
• R3 expressway

Djibouti

• National Highway 3 (Djibouti)

Finland

• Finnish national road 3

Hong Kong

• Route 3 (Hong Kong)

India

3

National Highway 3 (India)

Indonesia

• Indonesian National Route 3

Iran

• Freeway 3 (Iran)

Iraq

• Highway 3 (Iraq)

Israel

• Highway 3 (Israel)

Japan

• Japan National Route 3
• Route 3 (Shuto Expressway) in the Shibuya area of Tokyo
• Route 3 (Nagoya Expressway)
• Route 3 (Hanshin Expressway) linking Kobe and Osaka

Korea, South

• National Route 3

Malaysia

• Second Link Expressway
• Malaysia Federal Route 3

Mexico

• Mexican Federal Highway 3

New Zealand

• New Zealand State Highway 3

Paraguay

• National Route 3

Sri Lanka

•  A3  Colombo-Puttalam Road
•  E03  Colombo–Katunayake Expressway

Swaziland

• MR3 road

Taiwan (Republic of China)

• Taiwan National Highway 3

Thailand

• Thailand Route 3 (Sukhumvit Road)

Turkey

• , a motorway in Turkey running from Edirne to Istanbul.

United States

• Interstate 3 (proposed)
• Interstate A-3 (unsigned)
• Interstate H-3
• Interstate PRI-3 (unsigned)
• U.S. Route 3
• New England Route 3 (former)
• Alabama State Route 3
• Alaska Route 3
• Arkansas Highway 3
• California State Route 3
• Colorado State Highway 3
• Connecticut Route 3
• Delaware Route 3
• Florida State Road 3
• Georgia State Route 3
• Idaho State Highway 3
• Illinois Route 3
• Indiana State Road 3
• Iowa Highway 3
• K-3 (Kansas highway)
• Louisiana Highway 3
• Maine State Route 3
• Maryland Route 3
• Massachusetts Route 3
• M-3 (Michigan highway)
• Minnesota State Highway 3
• Mississippi Highway 3
• Missouri Route 3
  • Missouri Route 3 (1922) (former)
• Montana Highway 3
• Nebraska Highway 3 (former)
• Nevada State Route 3 (former)
• New Jersey Route 3
• New York State Route 3
• North Carolina Highway 3
• North Dakota Highway 3
• Ohio State Route 3
• Oklahoma State Highway 3
  • Oklahoma State Highway 3E
  • Oklahoma State Highway 3W
• Oregon Route 3
• Pennsylvania Route 3
• Rhode Island Route 3
• South Carolina Highway 3
• Tennessee State Route 3
• Texas State Highway 3
  • Texas State Highway Spur 3
  • Texas Farm to Market Road 3
  • Texas Park Road 3
• Utah State Route 3 (former)
• Vermont Route 3
• Virginia State Route 3
• Washington State Route 3
• West Virginia Route 3

Territories

• Guam Highway 3
• Interstate PRI-3 (unsigned)
• Puerto Rico Highway 3

Uruguay

• Route 3 Gral. José Artigas