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
E08 European route E08
E008 European route E008
Asian Highway 8
Australia
New South Wales
A8 (Sydney) (New South Wales)
Westconnex M8 (New South Wales)
A8 (Sydney) (New South Wales)
Westconnex M8 (New South Wales)Northern Territory
Ross Highway (Northern Territory)
Ross Highway (Northern Territory)Queensland
- Maroochydore Road (Queensland)
Tasmania
- East Tamar Highway (Tasmania)
South Australia and Victoria
SA
- Dukes Highway
- Western Highway (Victoria)(SA/VIC)
VIC
Austria
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Bulgaria
I-8 road (Bulgaria)
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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).svg.png)
Saskatchewan Highway 8
Yukon Highway 8
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Czech Republic
D8 Motorway
R8 Expressway (Czech: Prosecká radiála)- I/8 Highway (Czech: Silnice I/8)
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Djibouti
RN-8 (Djibouti)
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Eswatini
- MR8 road
Greece
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Hong Kong
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Hungary
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M8 expressway (Hungary)_Otszogletu_zold_tabla.svg.png)
Main road 8 (Hungary)
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India
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8
- State Highway 8 (Kerala)
Iraq
- Highway 8 (Iraq)
Ireland
M8 motorway (Republic of Ireland)
N8 road (Ireland)
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Japan
Japan National Route 8.png)
Hokuriku Expressway
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Malaysia
Gua Musang Highway
Gua Musang HighwayMexico
Montenegro
- M-8 highway (Montenegro)
New Zealand
New Zealand State Highway 8
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Paraguay
National Route 8
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Philippines
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N8 highway (Philippines)
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Russia
M8 highway (Russia)
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Taiwan
National Freeway 8
Provincial Highway 8
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United States
Interstate 8 
Interstate 8 Business
U.S. Route 8
New England Interstate Route 8 (former)
Alabama State Route 8
Alaska Route 8
Arkansas Highway 8
California State Route 8 (former)
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 .svg.png)
Louisiana State Route 8 (former)
Maine State Route 8
Maryland Route 8- Massachusetts Route 8
M-8 (Michigan highway)- Mississippi Highway 8
Missouri Route 8 .svg.png)
Missouri Route 8 (1922) (former)
Nebraska Highway 8
Nevada State Route 8 (former) 
Nevada State Route 8A (former)
Nevada State Route 8B (former)
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New Jersey Route 8 (former) .svg.png)
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.svg.png)
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
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- Territories
Guam Highway 8
Puerto Rico Highway 8
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Uruguay
Route 8 Brigadier Gral. Juan Antonio Lavalleja
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Vietnam
Vietnam National Route 8
Vietnam National Route 8| Previous | Lists of highways | Next |
|---|---|---|
| 7 | 8 | 9 |