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. For roads numbered 3A, see 3A.

International

 * Asian Highway 3
 * European route E03
 * European route E003
 * Schild TAH3.svg Tripoli – Cape Town Highway

Albania

 * Autostrada A3 Italia.svg A3 motorway (Albania)
 * SH3-AL.svg SH-3 Road in Albania from Kapshtice to Tirana.

Argentina

 * RN3-AR.svg National Route 3

New South Wales

 * A3 (Sydney)

Northern Territory

 * (Northern Territory)

Queensland

 * M3/A3 (Brisbane)
 * Burnett Highway (Queensland)
 * State Route 3 (Queensland) – Isis Highway

South Australia

 * Cross Road

Tasmania

 * Tasman Highway

Victoria

 * Eastern Freeway (Melbourne)
 * EastLink (Melbourne) (Toll)
 * Frankston Freeway
 * Nepean Highway
 * Nepean Highway
 * Nepean Highway

Western Australia

 * State Route 3 (Western Australia) – Reid Highway and Roe Highway

Austria

 * A3-AT.svg Südost Autobahn

Belgium

 * BE-R3.svg R3 (ring road)

Bulgaria

 * Nat_road_3_BG.svg Републикански път I-3
 * Mw A3 BG.svg Struma motorway (A3/E79)

Burma

 * National Highway 3 (Burma)

Cambodia

 * N3-KH.svgnal Highway 3 (Cambodia)

Canada

 * Alberta Highway 3 (Crowsnest Highway)
 * British Columbia Highway 3 (Crowsnest Highway)
 * Manitoba Highway 3.svg Manitoba Highway 3
 * NB 3.svg New Brunswick Route 3
 * NL Route 3.svg Newfoundland and Labrador Route 3
 * Nova Scotia 3.svg Nova Scotia Trunk 3
 * Ontario 3.svg Ontario Highway 3
 * PEI Highway 3.svg Prince Edward Island Route 3
 * OldRoad Qc3.png Quebec Route 3 (former)
 * Saskatchewan Highway 3 (jct).svg Saskatchewan Highway 3
 * NWT-3.svg Yellowknife Highway (Northwest Territories Highway 3)
 * Yukon Highway 3.svg Yukon Highway 3

China

 * China_Expwy_G3_sign_with_name.svg G3 Expressway

Costa Rica

 * CR RNP 3.svg National Route 3

Czech Republic

 * CZ_traffic_sign_IS16a_-_D3.svg D3 motorway
 * SilniceI3.svg I/3 Highway (in Czech)

Djibouti

 * Route 3-DJI.png RN-3 (Djibouti)

Dominican Republic

 * DR-3 troncal.svg DR-3

Eswatini

 * MR3 road

Finland

 * Finnish national road 3
 * Finland road sign F29-3.svg Åland Islands Highway 3

Germany

 * Bundesautobahn 3
 * Bundesstraße 3

Hong Kong

 * HK Route3.svg Route 3 (Hong Kong)

Hungary

 * M3 (Hu) Otszogletu kek tabla.svg M3 motorway (Hungary)
 * 3 (Hu) Otszogletu zold tabla.svg Main road 3 (Hungary)

India

 * NH3-IN.svg National Highway 3 (India)
 * National Highway 3 (India, old numbering)

Indonesia

 * ID Nasional3.svg Indonesian National Route 3

Iran

 * Freeway in Iran.svgIran Freeway 3.png Freeway 3 (Iran)

Iraq

 * Road 3-IRQ.png Highway 3 (Iraq)

Ireland

 * M3-IE.svg M3 motorway (Republic of Ireland)
 * IRL N3.svg N3 road (Ireland)

Israel

 * ISR-HW-3.svg Highway 3 (Israel)

Italy

 * Autostrada A3 Italia.svg Autostrada A3
 * Italian traffic signs - raccordo autostradale 3.svg RA 3

Japan

 * (branch of the Kyushu Expressway)
 * Shuto Urban Expwy Sign 0003.svg Route 3 (Shuto Expressway) in the Shibuya area of Tokyo
 * Japanese Urban Expwy Sign 0003.svg Route 3 (Nagoya Expressway)
 * Hanshin Urban Expwy Sign 0003.svg Kobe Route
 * Japanese Urban Expwy Sign 0003.svg Route 3 (Nagoya Expressway)
 * Hanshin Urban Expwy Sign 0003.svg Kobe Route

Kazakhstan

 * A3 highway (Kazakhstan)

Korea, South

 * Korea National Route No.3.svg National Route 3

Laos

 * R3A highway

Malaysia

 * Mes-e3.png Second Link Expressway
 * Malaysia Federal Route 3

Mexico

 * Carretera federal 3.svg Mexican Federal Highway 3

Moldova

 * Schild M3 Moldavië.svg Magistrala 3
 * Schild R3 Moldavië.svg Road 3

New Zealand

 * State Highway 3 NZ.svg New Zealand State Highway 3
 * State Highway 3A NZ.svg New Zealand State Highway 3A

Nigeria

 * NGA road A3.svg A3 highway (Nigeria)

Oman

 * R3-OM.svg Route 3 (Oman)

Paraguay

 * [[Image:R3-PY.svg|20px|]] National Route 3

Philippines

 * C-3 Circumferential Road 3
 * R-3 Radial Road 3
 * N3 (Philippines).svg N3 highway (Philippines)
 * E3 (Philippines).svg E3 expressway (Philippines)

Poland

 * Autostrada A3 (planned 1993-2001; unbuilt)
 * Expressway S3
 * National road 3

Romania

 * RO Roadsign 3.svg Drumul Naţional 3
 * A3-RO.svg Autostrada A3

Russia

 * M3-RUS.svg M3 highway (Russia)

Sri Lanka

 * A3 highway (Sri Lanka) Colombo-Puttalam Road
 * Colombo–Katunayake Expressway

South Africa

 * N3 (South Africa)
 * M3 (Cape Town)
 * M3 (Pretoria)

Taiwan (Republic of China)

 * TWHW3.svg Freeway 3 (Taiwan)
 * TW PHW3.svg Provincial Highway 3 (Taiwan)

Thailand

 * Thai Highway-3.svg Thailand Route 3 (Sukhumvit Road)

Turkey

 * O3-TR sign.svg, a motorway in Turkey running from Edirne to Istanbul.

United Kingdom

 * UK-Motorway-M3.svg M3 motorway (Great Britain)
 * UK_road_A3.svg A3 road (Great Britain)
 * UK-Motorway-M3.svg M3 motorway (Northern Ireland)
 * UK_road_A3.svg A3 road (Northern Ireland)

United States

 * I-3.svg Interstate 3 (proposed)
 * I-A3.svg Interstate A-3 (unsigned)
 * I-H3.svg Interstate H-3
 * I-PR3.svg Interstate PR-3 (unsigned)
 * US 3.svg U.S. Route 3
 * New England 3.svg New England Interstate Route 3 (former)
 * Alabama 3.svg Alabama State Route 3
 * Alaska 3 shield.svg Alaska Route 3
 * Arkansas 3.svg Arkansas Highway 3
 * California 3.svg California State Route 3
 * Colorado 3.svg Colorado State Highway 3
 * Connecticut Highway 3.svg Connecticut Route 3
 * Elongated circle 3.svg Delaware Route 3
 * Florida 3.svg Florida State Road 3
 * Florida 3A.svg Florida State Road 3A (pre-1945) (former)
 * Brevard County 3.svg County Road 3 (Brevard County, Florida)
 * Volusia County 3.svg County Road 3 (Volusia County, Florida)
 * Georgia 3.svg Georgia State Route 3
 * Georgia 3N.svg Georgia State Route 3N (former)
 * Georgia 3S.svg Georgia State Route 3S (Thomaston) (former)
 * Georgia 3W.svg Georgia State Route 3W (Albany 1946–1957) (former)
 * Georgia 3W.svg Georgia State Route 3W (Albany 1960–1973) (former)
 * Georgia 3W.svg Georgia State Route 3W (Thomaston) (former)
 * Georgia 3W.svg Georgia State Route 3W (Atlanta–Marietta 1937–1946) (former)
 * Georgia 3W.svg Georgia State Route 3W (Atlanta–Marietta 1954–1955) (former)
 * Georgia 3E.svg Georgia State Route 3E (Thomaston) (former)
 * Georgia 3E.svg Georgia State Route 3E (Atlanta–Marietta) (former)
 * ID-3.svg Idaho State Highway 3
 * Illinois 3.svg Illinois Route 3
 * Indiana 3.svg Indiana State Road 3
 * Iowa 3.svg Iowa Highway 3
 * K-3.svg K-3 (Kansas highway)
 * Elongated circle 3.svg Kentucky Route 3
 * Louisiana 3.svg Louisiana Highway 3
 * Louisiana 3 (1924).svg Louisiana State Route 3 (former)
 * MA Route 3.svg Maine State Route 3
 * MD Route 3.svg Maryland Route 3
 * MA Route 3.svg Massachusetts Route 3
 * M-3.svg M-3 (Michigan highway)
 * MN-3.svg Minnesota State Highway 3
 * Anoka County Road 3.svg County Road 3 (Anoka County, Minnesota)
 * CR 3 jct.svg County Road 3 (Chisago County, Minnesota)
 * CR 3 jct.svg County Road 3 (Goodhue County, Minnesota)
 * CR 3 jct.svg County Road 3 (Hennepin County, Minnesota)
 * Ramsey County 3 MN.svg County Road 3 (Ramsey County, Minnesota)
 * CR 3 jct.svg County Road 3 (St. Louis County, Minnesota)
 * Circle sign 3.svg Mississippi Highway 3
 * MO-3.svg Missouri Route 3
 * MO-3 (1948).svg Missouri Route 3 (1922) (former)
 * MT-3.svg Montana Highway 3
 * N-3.svg Nebraska Highway 3 (former)
 * Nevada 3.svg Nevada State Route 3 (former)
 * Circle sign 3.svg New Jersey Route 3
 * CR 3 jct.svg County Route 3 (Monmouth County, New Jersey)
 * CR 3A jct.svg County Route 3A (Monmouth County, New Jersey)
 * CR 3 jct.svg County Route 3 (Ocean County, New Jersey)
 * NY-3.svg New York State Route 3
 * NY-3A.svg New York State Route 3A (1930–1932) (former)
 * NY-3A.svg New York State Route 3A (1932–1935) (former)
 * NY-3B (1927).svg New York State Route 3B (1930–1932) (former)
 * NY-3B (1927).svg New York State Route 3B (1932–1935) (former)
 * NY-3C (1927).svg New York State Route 3C (1930–1932) (former)
 * NY-3C (1927).svg New York State Route 3C (1932–1935) (former)
 * NY-3D (1927).svg New York State Route 3D (1931–1932) (former)
 * NY-3D (1927).svg New York State Route 3D (1932–1935) (former)
 * NY-3E (1927).svg New York State Route 3E (1930–1932) (former)
 * NY-3E (1927).svg New York State Route 3E (1932–1935) (former)
 * NY-3F (1927).svg New York State Route 3F (1931–1932) (former)
 * NY-3F (1927).svg New York State Route 3F (1932–1935) (former)
 * NY-3G (1927).svg New York State Route 3G (former)
 * CR 3 jct.svg County Route 3 (Allegany County, New York)
 * CR 3 jct.svg County Route 3 (Cattaraugus County, New York)
 * CR 3 jct.svg County Route 3 (Chemung County, New York)
 * Dutchess County 3.svg County Route 3 (Dutchess County, New York)
 * CR 3 jct.svg County Route 3 (Genesee County, New York)
 * CR 3 jct.svg County Route 3 (Greene County, New York)
 * Jefferson County 3.svg County Route 3 (Jefferson County, New York)
 * Livingston County 3.svg County Route 3 (Livingston County, New York)
 * CR 3 jct.svg County Route 3 (Montgomery County, New York)
 * CR 3 jct.svg County Route 3 (Niagara County, New York)
 * CR 3 jct.svg County Route 3 (Oneida County, New York)
 * CR 3 jct.svg County Route 3 (Ontario County, New York)
 * CR 3 jct.svg County Route 3 (Oswego County, New York)
 * CR 3 jct.svg County Route 3 (Otsego County, New York)
 * Rensselaer County 3.svg County Route 3 (Rensselaer County, New York)
 * Schoharie County 3.svg County Route 3 (Schoharie County, New York)
 * Schuyler County 3.svg County Route 3 (Schuyler County, New York)
 * St. Lawrence County 3.svg County Route 3 (St. Lawrence County, New York)
 * CR 3 jct.svg County Route 3 (Steuben County, New York)
 * Suffolk County 3.svg County Route 3 (Suffolk County, New York)
 * CR 3 jct.svg County Route 3 (Westchester County, New York)
 * NC 3.svg North Carolina Highway 3
 * ND-3 (2015).svg North Dakota Highway 3
 * OH-3.svg Ohio State Route 3
 * Oklahoma State Highway 3.svg Oklahoma State Highway 3
 * Oklahoma State Highway 3E.svg Oklahoma State Highway 3E
 * Oklahoma State Highway 3W.svg Oklahoma State Highway 3W
 * OR 3.svg Oregon Route 3
 * PA-3.svg Pennsylvania Route 3
 * Rhode Island 3.svg Rhode Island Route 3
 * South Carolina 3.svg South Carolina Highway 3
 * Tennessee 3.svg Tennessee State Route 3
 * Texas 3.svg Texas State Highway 3
 * Texas Loop 3.svg Texas State Highway Loop 3 (former)
 * Texas Spur 3.svg Texas State Highway Spur 3
 * Texas FM 3.svg Texas Farm to Market Road 3
 * Texas Park Road 3.svg Texas Park Road 3
 * Utah SR 3.svg Utah State Route 3 (former)
 * Vermont 3.svg Vermont Route 3
 * Virginia 3.svg Virginia State Route 3
 * WA-3.svg Washington State Route 3
 * WA-PSH3.svg Primary State Highway 3 (Washington) (former)
 * WV-3.svg West Virginia Route 3

Territories

 * Guam Route 3.svg Guam Highway 3
 * I-PR3.svg Interstate PR-3 (unsigned)
 * PR primary 3.svg Puerto Rico Highway 3
 * PR urban primary 3R.svg Puerto Rico Highway 3R

Uruguay

 * R3-UY.svg Route 3 Gral. José Artigas

Zambia

 * Elongated circle 3.svg T3 road (Zambia)
 * Elongated circle 3.svg M3 road (Zambia)