The following highways are numbered 8. For roads numbered A8, see list of A8 roads. For roads numbered N8, see list of N8 roads.
Route 8, or Highway 8, may refer to:
International Asian Highway 8 European route E08 European route E008
Argentina National Route 8 Buenos Aires Provincial Route 8
Australia New South Wales A8 (Sydney) (New South Wales) Westconnex M8 (New South Wales)
Northern Territory Ross Highway (Northern Territory)
Queensland Maroochydore Road (Queensland)
Tasmania East Tamar Highway (Tasmania)
South Australia and Victoria
South Australia Dukes Highway Western Highway (Victoria)(SA/VIC)
Victoria Western Freeway (Victoria) Western Highway (Victoria) Ballarat Road, Melbourne
Austria Innkreis Autobahn
Bolivia National Route 8 (Bolivia)
Bulgaria I-8 road (Bulgaria)
Burma National Highway 8 (Burma)
Cambodia National Highway 8 (Cambodia)
Canada Alberta Highway 8 British Columbia Highway 8 Manitoba Highway 8 New Brunswick Route 8 Northwest Territories Highway 8 (Dempster Highway) Nova Scotia Trunk 8 Ontario Highway 8 Prince Edward Island Route 8 Quebec Route 8 (former) Saskatchewan Highway 8 Yukon Highway 8
Czech Republic D8 Motorway R8 Expressway (Czech: Prosecká radiála) I/8 Highway (Czech: Silnice I/8)
Djibouti RN-8 (Djibouti)
Eswatini MR8 road
Greece A8 motorway (Olympia Odos) EO8 road EO8a road, remnants of the realigned Athens–Patras road that were not replaced by the A8 motorway
Hong Kong Route 8 (Hong Kong)
Hungary M8 expressway (Hungary) Main road 8 (Hungary)
India National Highway 8 (India) State Highway 8 (Karnataka) State Highway 8 (Kerala) or Main Eastern Highway State Highway 8 (Madhya Pradesh) State Highway 8 (West Bengal)
Iraq Highway 8 (Iraq)
Ireland M8 motorway (Republic of Ireland) N8 road (Ireland)
Italy Autostrada A8 RA 8
Japan Japan National Route 8
Malaysia
Malaysia Federal Route 8 Perak State Route A8 Johor State Route J8 Johor State Route J8, Jalan Ulu Tiram–Seelong Jalan Ulu Tiram (Also known as Federal Route 1375) Malacca State Route M8 Negeri Sembilan State Route N8
Mexico Mexican Federal Highway 8
Montenegro M-8 highway (Montenegro)
New Zealand New Zealand State Highway 8 New Zealand State Highway 8A New Zealand State Highway 8B
Nigeria A8 highway (Nigeria)
Paraguay National Route 8
Philippines N8 highway (Philippines)
Poland Motorway A8 Expressway S8 National road 8
Russia M8 highway (Russia)
Taiwan National Freeway 8 Provincial Highway 8
United Kingdom M8 motorway (Great Britain) A8 road (Great Britain) A8(M) motorway (Great Britain) (former) A8 road (Northern Ireland) A8(M) motorway (Northern Ireland)
United States Interstate 8 Interstate 8 Business U.S. Route 8 New England Interstate Route 8 (former) Alabama State Route 8 County Route 8 (Lee County, Alabama) Alaska Route 8 Arkansas Highway 8 California State Route 8 (former) California State Route 8U Colorado State Highway 8 Connecticut Route 8 Delaware Route 8 Florida State Road 8 Florida State Road 8A Georgia State Route 8 Idaho State Highway 8 Illinois Route 8 Indiana State Road 8 Iowa Highway 8 K-8 (Kansas highway) Kentucky Route 8 Louisiana Highway 8 Louisiana State Route 8 (former) Maine State Route 8 Maryland Route 8 Massachusetts Route 8 Massachusetts Route 8A M-8 (Michigan highway) Mississippi Highway 8 Missouri Route 8 Missouri Route 8 (1922) (former) Nebraska Highway 8 Nevada State Route 8 (former) Nevada State Route 8A (former) Nevada State Route 8B (former) New Jersey Route 8 (former) New Jersey Route 8N (former) County Route 8 (Monmouth County, New Jersey) County Route 8A (Monmouth County, New Jersey) County Route 8B (Monmouth County, New Jersey) New Mexico State Road 8 New York State Route 8 County Route 8 (Allegany County, New York) County Route 8 (Broome County, New York) County Route 8 (Cattaraugus County, New York) County Route 8 (Chemung County, New York) County Route 8 (Clinton County, New York) County Route 8 (Columbia County, New York) County Route 8A (Columbia County, New York) County Route 8 (Dutchess County, New York) County Route 8 (Genesee County, New York) County Route 8 (Jefferson County, New York) County Route 8 (Lewis County, New York) County Route 8 (Nassau County, New York) County Route 8 (Ontario County, New York) County Route 8 (Oswego County, New York) County Route 8 (Otsego County, New York) County Route 8 (Rensselaer County, New York) County Route 8 (Rockland County, New York) County Route 8 (Schuyler County, New York) County Route 8 (St. Lawrence County, New York) County Route 8 (Suffolk County, New York) County Route 8 (Ulster County, New York) North Carolina Highway 8 North Dakota Highway 8 Ohio State Route 8 Oklahoma State Highway 8 Oklahoma State Highway 8A Oklahoma State Highway 8B Oregon Route 8 Pennsylvania Route 8 South Carolina Highway 8 South Dakota Highway 8 (former) Tennessee State Route 8 Texas State Highway 8 Texas State Highway Beltway 8 Texas State Highway Loop 8 Texas Farm to Market Road 8 Texas Park Road 8 Texas Recreational Road 8 Utah State Route 8 Utah State Route 8 (1910-1977) (former) Vermont Route 8 Vermont Route 8A Virginia State Route 8 Washington State Route 8 Primary State Highway 8 (Washington) (former) West Virginia Route 8 Territories Guam Highway 8 Puerto Rico Highway 8
Uruguay Route 8 Brigadier Gral. Juan Antonio Lavalleja
Vietnam Vietnam National Route 8
Zambia M8 road (Zambia)
See also List of A8 roads List of highways numbered 8A