Route 12 or Highway 12 can refer to:
For a list of roads named A12, see A12 roads.
International
Asian Highway 12
E12 European route E12
E012 European route E012
Asian Highway 12
Argentina
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Australia
NSW
Western Sydney Airport Motorway (proposed)
Western Sydney Airport Motorway (proposed)NT
VIC/SA
Austria
Inntal Autobahn
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Bulgaria
Републикански път I-12
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Canada
Alberta Highway 12
British Columbia Highway 12
Manitoba Highway 12
Nova Scotia Trunk 12
Ontario Highway 12
Prince Edward Island Route 12
Quebec Route 12 (former).svg.png)
Saskatchewan Highway 12
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China
G12 Expressway
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Czech Republic
I/12 Highway; Czech: Silnice I/12
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India
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12
National Highway 12 (India)
Iran
Road 12
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Iraq
Highway 12 (Iraq)
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Ireland
N12 road (Ireland)
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Israel
Highway 12 (Israel)
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Japan
Japan National Route 12
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Korea, South
Expressway 12 - Muan–Gwangju Expressway
- Gwangju–Daegu Expressway
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Malaysia
New Zealand
New Zealand State Highway 12
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Paraguay
National Route 12
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Poland
Expressway S12
National road 12
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Romania
- DN12 - Drumul Național 12
- A12 - Pitești–Craiova Expressway
South Africa
N12 road (South Africa)
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Taiwan
Prov 12 Provincial Highway 12 (Taiwan)
United Kingdom
British A12 (London-Great Yarmouth)
Northern Irish M12 (Craigavon)
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United States
Interstate 12
U.S. Route 12
New England Interstate Route 12 (former)
Alabama State Route 12 (former)
Arkansas Highway 12
California State Route 12 
County Route A12 (California)
County Route E12 (California)
County Route G12 (California)
County Route J12 (California)
County Route S12 (California)
Colorado State Highway 12
Connecticut Route 12
Delaware Route 12
Florida State Road 12 
County Road 12 (Gadsden County, Florida)- County Road 12 (Leon County, Florida)
Georgia State Route 12
Illinois Route 12 (former)
Iowa Highway 12 .svg.png)
County Route C12 (Humboldt County, Iowa)
K-12 (Kansas highway) (former)
Kentucky Route 12
Louisiana Highway 12 .svg.png)
Louisiana State Route 12 (former)
Maryland Route 12
Massachusetts Route 12
M-12 (Michigan highway) (former)- Mississippi Highway 12
Missouri Route 12
Nebraska Highway 12
Nevada State Route 12 (former)
New Hampshire Route 12- New Jersey Route 12
County Route 12 (Monmouth County, New Jersey)
New Mexico State Road 12
New York State Route 12 - County Route 12 (Allegany County, New York)
- County Route 12 (Cattaraugus County, New York)
- County Route 12 (Chemung County, New York)
- County Route 12 (Chenango County, New York)
County Route 12 (Clinton County, New York)- County Route 12 (Genesee County, New York)
- County Route 12 (Greene County, New York)
- County Route 12 (Jefferson County, New York)
County Route 12 (Nassau County, New York)- County Route 12 (Niagara County, New York)
- County Route 12 (Onondaga County, New York)
- County Route 12 (Otsego County, New York)
County Route 12 (Putnam County, New York)
County Route 12 (Schuyler County, New York)- County Route 12 (St. Lawrence County, New York)
- County Route 12 (Steuben County, New York)
County Route 12 (Suffolk County, New York)- County Route 12 (Ulster County, New York)
County Route 12 (Warren County, New York)
North Carolina Highway 12
Ohio State Route 12
Pennsylvania Route 12
Rhode Island Route 12
South Carolina Highway 12
South Dakota Highway 12 (former)
Tennessee State Route 12
Texas State Highway 12 
Texas State Highway Loop 12
Ranch to Market Road 12
Texas Park Road 12
Utah State Route 12
Vermont Route 12
State Route 12 (Virginia 1918-1933) (former) - State Route 12 (Virginia 1933-1935) (former)
- State Route 12 (Virginia 1935-1953) (former)
State Road 12 (Washington 1905–1919) (former) - Washington State Route 12 (1964-1967) (former)
Primary State Highway 12 (Washington) (former)
Secondary State Highway 12G (Washington) (former)
Secondary State Highway 12H (Washington) (former)
West Virginia Route 12
Wisconsin Highway 12 (former)
Wyoming Highway 12
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- Territories
Guam Highway 12
Puerto Rico Highway 12
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See also
- List of A12 roads
- List of highways numbered 12A
- List of highways numbered 12B
- List of highways numbered 12C
- List of highways numbered 12D
- List of highways numbered 12E
- List of highways numbered 12F
| Previous | Lists of highways | Next |
|---|---|---|
| 11 | 12 | 13 |