The following highways are numbered 2. For roads numbered A2, see list of A2 roads. For roads numbered B2, see the list of B2 roads. For roads numbered M2, see list of M2 roads. For roads numbered N2, see list of N2 roads.
International , between Indonesia and Iran European route E002 Trans-Sahara Highway
Africa
Congo National Road 2 (Democratic Republic of the Congo)
Djibouti RN-2 (Djibouti)
Nigeria Nigeria Trunk Road A2
Senegal N2 road (Senegal)
South Africa N2 road (South Africa) M2 (Johannesburg) M2 (Pretoria)
Tanzania T2 road (Tanzania)
Zambia T2 road (Zambia) M2 road (Zambia)
Asia
Bangladesh N2 (Bangladesh)
Cambodia National Highway 2 (Cambodia)
Hong Kong Route 2 (Hong Kong)
India National Highway 2 (India) State Highway 2 (Rajasthan) State Highway 2 (Andhra Pradesh) State Highway 2 (West Bengal)
Indonesia Indonesian National Route 2
Iran Freeway 2 (Iran)
Iraq Highway 2 (Iraq)
Israel Highway 2 (Israel)
Japan
Route 2 (Shuto Expressway) Route 2 (Nagoya Expressway) Route 2 (Hanshin Expressway)
Malaysia
Malaysia Federal Route 2 Jalan Durian Tunggal–Tangkak
Myanmar National Highway 2 (Myanmar)
Oman Route 2 (Oman)
Pakistan M-2 motorway (Pakistan)
Philippines Circumferential Road 2 Radial Road 2 N2 highway (Philippines) E2 expressway (Philippines)
Sri Lanka Galle Road Colombo Inter-provincial Orbital Router
South Korea National Route 2
Taiwan National Freeway 2 Provincial Highway 2 (Taiwan)
Thailand Thailand Route 2
Turkey
Europe
Albania
Austria
Belarus M2 highway (Belarus)
Belgium R2 road (Belgium)
Bulgaria I-2 road
Czech Republic D2 motorway
Estonia
Finland Finnish national road 2 Åland Islands Highway 2
France Autoroute A2 (french) Route nationale 2 (french)
Germany Bundesautobahn 2 Bundesstraße 2
Greece
EO2 road
Hungary M2 expressway (Hungary) Main road 2 (Hungary)
Ireland
N2 road (Ireland)
Italy Autostrada A2 Autostrada A2 (1962–1988) RA 2 T2
Moldova
Netherlands Rijksweg 2
Poland National road 2 (DK2) Motorway of Freedom (A2/E30) expressway S2
Portugal A2 motorway (Portugal)
Romania DN2 DN2A DN2B A2 motorway
Russia M2 highway (Russia)
United Kingdom M2 motorway (Great Britain) A2 road (England) M2 motorway (Northern Ireland) A2 road (Northern Ireland)
Ukraine Highway M02 (Ukraine)
North America Canada
Alberta Alberta Highway 2 British Columbia British Columbia Highway 2 Manitoba Manitoba Highway 2 New Brunswick New Brunswick Route 2 Newfoundland and Labrador Newfoundland and Labrador Route 2 Northwest Territories Northwest Territories Highway 2 Nova Scotia Nova Scotia Trunk 2 Ontario Ontario Highway 2 Prince Edward Island Prince Edward Island Route 2 Quebec Quebec Route 2 Saskatchewan Saskatchewan Highway 2 Yukon Yukon Highway 2
Costa Rica National Route 2
Cuba Autopista A2 Highway 1–2 Highway I–2 Highway 2–I–2 Highway 3–I–2 Highway 4–I–2
Dominican Republic DR-2
Mexico Mexican Federal Highway 2
United States
Interstate 2 U.S. Route 2 New England Interstate Route 2 (former)
Alabama Alabama State Route 2
Alaska Interstate A-2 (unsigned) Alaska Route 2
Arkansas Arkansas Highway 2
California California State Route 2 County Route A2 (California) County Route B2 (California) County Route D2 (California) County Route E2 (California) County Route G2 (California) County Route J2 (California) County Route N2 (California) County Route R2 (California) County Route S2 (California)
Colorado Colorado State Highway 2
Connecticut Connecticut Route 2
Delaware Delaware Route 2
Florida Florida State Road 2 County Road 2 (Nassau County, Florida) County Road 2 (Okaloosa County, Florida) County Road 2B (Okaloosa County, Florida) County Road 2 (Walton County, Florida)
Georgia Georgia State Route 2
Hawaii Interstate H-2
Illinois Illinois Route 2
Indiana Indiana State Road 2
Iowa Iowa Highway 2
Kansas K-2 (Kansas highway)
Kentucky Kentucky Route 2
Louisiana Louisiana Highway 2 Louisiana State Route 2 (former)
Maryland Maryland Route 2
Massachusetts Massachusetts Route 2
Minnesota County Road 2 (Goodhue County, Minnesota) County Road 2 (Hennepin County, Minnesota) County Road 2 (Pine County, Minnesota) County Road 2 (Scott County, Minnesota) County Road 2 (Washington County, Minnesota)
Mississippi Mississippi Highway 2
Missouri Missouri Route 2 Missouri Route 2 (1922)
Montana Montana Highway 2
Nebraska Nebraska Highway 2 Nebraska Spur 2B Nebraska Recreation Road 2D
Nevada Nevada State Route 2 Nevada State Route 2B Nevada State Route 2C
New Jersey New Jersey Route 2 New Jersey Route 2N County Route 2 (Monmouth County, New Jersey)
New Mexico New Mexico State Road 2
New York New York State Route 2 County Route 2 (Allegany County, New York) County Route 2 (Chemung County, New York) County Route 2 (Chenango County, New York) County Route 2 (Clinton County, New York) County Route 2 (Columbia County, New York) County Route 2 (Delaware County, New York) County Route 2 (Dutchess County, New York) County Route 2 (Erie County, New York) County Route 2 (Essex County, New York) County Route 2 (Franklin County, New York) County Route 2 (Genesee County, New York) County Route 2 (Lewis County, New York) County Route 2 (Madison County, New York) County Route 2 (Monroe County, New York) County Route 2 (Nassau County, New York) County Route 2 (Niagara County, New York) County Route 2 (Oneida County, New York) County Route 2 (Onondaga County, New York) County Route 2 (Ontario County, New York) County Route 2 (Oswego County, New York) County Route 2 (Rensselaer County, New York) County Route 2 (Steuben County, New York) County Route 2 (Suffolk County, New York) County Route 2 (Washington County, New York) County Route 2 (Yates County, New York)
North Carolina North Carolina Highway 2
North Dakota U.S. Route 2N U.S. Route 2S
Ohio Ohio State Route 2
Oklahoma Oklahoma State Highway 2
Oregon Oregon Route 2
Pennsylvania Pennsylvania Route 2
Rhode Island Rhode Island Route 2
South Carolina South Carolina Highway 2
Tennessee Tennessee State Route 2
Texas Texas State Highway 2 Texas State Highway Loop 2 Farm to Market Road 2 Texas Park Road 2 Texas Recreational Road 2
Utah Utah State Route 2 (1962-1977) Utah State Route 2 (1920s-1962)
Vermont Vermont Route 2B
Virginia Virginia State Route 2
Washington Washington State Highway 2
West Virginia West Virginia Route 2
Puerto Rico Interstate PR-2 (unsigned) Puerto Rico Highway 2 Puerto Rico Highway 2R
Guam Guam Highway 2
Oceania Australia
New South Wales M2 Hills Motorway Lane Cove Tunnel Windsor Road, Sydney Gold Coast Highway
Northern Territory Namatjira Drive
Queensland
Ipswich Motorway (Brisbane) Warrego Highway (Brisbane)
Logan Motorway (Brisbane) Gateway Motorway (Brisbane) Warrego ( Toowoomba Bypass), Landsborough, and Barkly Highways (Queensland) Warrego and Mitchell Highway Gold Coast Highway Brisbane
South Australia
Southern Expressway North–South Motorway Northern Expressway
South Road, Adelaide
Tasmania Bass Highway, Tasmania
Victoria Tullamarine Freeway CityLink
Western Australia State Route 2 (Western Australia) – Mitchell Freeway, Kwinana Freeway, and Forrest Highway
New Zealand New Zealand State Highway 2
South America Argentina Buenos Aires Provincial Route 2
Bolivia National Route 2 (Bolivia)
Paraguay National Route 2
Peru Peru Highway 2
Uruguay Route 2 Grito de Asencio
See also List of highways numbered 2A List of highways numbered 2N