| 释义 |
- International
- Albania
- Australia
- Austria
- Bangladesh
- Belgium
- Bulgaria
- Burma
- Cambodia
- Canada
- China
- Congo, Democratic Republic of the
- Czech Republic
- Djibouti
- Germany
- Greece
- Hong Kong
- India
- Indonesia
- Iran
- Iraq
- Israel
- Japan
- Korea, South
- Malaysia
- Mexico
- Netherlands
- New Zealand
- Paraguay
- Philippines
- Poland
- Romania
- Russia
- Senegal
- Sri Lanka
- Taiwan
- Thailand
- Turkey
- United Kingdom
- United States Territories
- Uruguay
{{Redirect|Route 2|mass transit routes numbered 2|Route 2 (public transport)}}The following highways are numbered 2. For roads numbered A2, see list of A2 roads. For roads numbered B2, see list of B2 roads. For roads numbered M2, see list of M2 roads. For roads numbered N2, see list of N2 roads. {{TOC right|limit=3}}International- {{AHN-AH|2}} Asian Highway 2, an international road from Indonesia to Iran
- {{BAB-E|2}} European route E2
- {{BAB-E|002}} European route E002
- Trans-Sahara Highway
Albania- SH-2 Highway in Albania from Tirana to Durrës.
Australia - {{AUshield|NSW|M2}} M2 Hills Motorway (Sydney)
- {{AUshield|VIC|M2}} Tullamarine Freeway (Melbourne)
- {{AUshield|QLD|M2}} Ipswich Motorway (Brisbane)
- {{AUshield|SA|M2}} Southern Expressway (Adelaide)
- {{AUshield|S|2}} State Route 2 (Western Australia) – Mitchell Freeway, Kwinana Freeway, and Forrest Highway
- {{AUshield|N|A2}} Warrego, Landsborough, and Barkly Highways (Queensland)
- {{AUshield|NSW|A2}} Windsor Road (Sydney)
- {{AUshield|S|2}} Gold Coast Highway (Queensland)
- {{AUshield|TAS|A2}} Bass Highway, Tasmania
Austria Bangladesh- N2 - Dhaka–Sylhet Highway
BelgiumBulgariaBurma- National Highway 2 (Burma)
Cambodia- National Highway 2 (Cambodia)
Canada - Alberta Highway 2 (including the Queen Elizabeth II Highway)
- British Columbia Highway 2
- Manitoba Highway 2
- New Brunswick Route 2 (part of the Trans-Canada Highway)
- Newfoundland and Labrador Route 2
- Northwest Territories Highway 2
- Nova Scotia Trunk 2
- Ontario Highway 2 (almost entirely removed from the network)
- Prince Edward Island Route 2
- Quebec Route 2 (former)
- Saskatchewan Highway 2
- Yukon Highway 2
China Congo, Democratic Republic of the - National Road No. 2 (Democratic Republic of the Congo)
Czech Republic - D2 from Brno to Bratislava in Slovakia
Djibouti- National Highway 2 (Djibouti)
Germany- Bundesautobahn 2
- Bundesstraße 2
Greece Hong Kong India{{Road marker IN NH|2}}National Highway 2 (India){{Road marker |IN SH | 2 |width= 25 |float=left}}State Highway 2 (Rajasthan){{Road marker |IN SH | 2 |width= 25 |float=left}}State Highway 2 (Andhra Pradesh){{Road marker |IN SH | 2 |width= 25 |float=left}}State Highway 2 (West Bengal)Indonesia- Indonesian National Route 2
IranIraqIsraelJapan- Japan National Route 2
- San'yō Expressway
- Route 2 (Shuto Expressway) in Tokyo
- Route 2 (Nagoya Expressway)
- Route 2 (Hanshin Expressway) in Osaka
Korea, SouthMalaysia- {{JKR|2}} Malaysia Federal Route 2
Mexico- Mexican Federal Highway 2
NetherlandsNew Zealand- New Zealand State Highway 2
Paraguay- National Route 2 (Paraguay)
Philippines- {{font color|white|blue|C-2}} Circumferential Road 2
- {{font color|white|red|R-2}} Radial Road 2
- N2 highway (Philippines)
- E2 expressway (Philippines)
Poland RomaniaRussiaSenegalSri Lanka- {{Highway code (Sri Lanka)|2}} Galle Road
- {{Expressway code (Sri Lanka)|02}} Colombo Inter-provincial Orbital Router
Taiwan- Freeway 2 (Taiwan)
- Provincial Highway 2 (Taiwan)
Thailand- Thailand Route 2 (Mittraphap Road)
Turkey- {{TUR-O|2}}, a motorway in Turkey as the outer half ring road in Istanbul.
United Kingdom- M2 motorway (Great Britain)
United States - Interstate 2
- Interstate A-2 (Alaska; unsigned)
- Interstate H-2 (Hawaii)
- Interstate PR-2 (Puerto Rico; unsigned)
- U.S. Route 2
- U.S. Route 2N (former)
- U.S. Route 2S (former)
- New England Interstate Route 2 (former)
- Alabama State Route 2
- Alaska Route 2
- Arkansas Highway 2 (former)
- California State Route 2
- Colorado State Highway 2
- Connecticut Route 2
- Delaware Route 2
- Florida State Road 2
- Georgia State Route 2
- Illinois Route 2
- Indiana State Road 2
- Iowa Highway 2
- K-2 (Kansas highway)
- Kentucky Route 2
- Louisiana Highway 2
- Maryland Route 2
- Massachusetts Route 2
- 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 Highway 2
- Missouri Route 2
- Missouri Route 2 (1922) (former)
- Montana Highway 2
- Nebraska Highway 2
- Nevada State Route 2 (former)
- Nevada State Route 2A (former)
- Nevada State Route 2B (former)
- Nevada State Route 2C (former)
- New Jersey Route 2 (former)
- New Jersey Route 2N (former)
- County Route 2 (Monmouth County, New Jersey)
- New Mexico State Road 2
- 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 Highway 2
- Ohio State Route 2
- Oklahoma State Highway 2
- Oregon Route 2 (former)
- Pennsylvania Route 2 (former)
- Rhode Island Route 2
- South Carolina Highway 2
- Tennessee State Route 2
- Texas State Highway 2 (former)
- Texas State Highway Loop 2
- Texas Farm to Market Road 2
- Texas Park Road 2
- Texas Recreational Road 2
- Utah State Route 2 (former)
- Vermont Route 2A
- Virginia State Route 2
- Washington State Highway 2 (former)
- West Virginia Route 2
Territories - Guam Highway 2
- Interstate PR-2 (unsigned)
- Puerto Rico Highway 2
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