The following highways are numbered 1. For roads numbered A1, see list of A1 roads. For roads numbered B1, see list of B1 roads. For roads numbered M1, see List of M1 roads. For roads numbered N1, see list of N1 roads. For roads numbered S1, see List of highways numbered S1.

• AH1 Asian Highway 1, an international route from Japan to the Turkish-Bulgarian border
• E01 European route E01 (Northern Ireland to Spain)
• E001 European route E001 (Georgia to Armenia)
• Cairo–Dakar Highway

• Highway 1 (Afghanistan), also called A01 and formally called the Ring Road, circles Afghanistan connecting Kabul, Ghazni, Kandahar, Farah, Herat, and Mazar.

• National Road 1 (Albania), road running from border Montenegro (Hani i Hotit) to Tirana.
• Albania–Kosovo Highway

• Algeria East–West Highway

• CG-1

• National Route 1
• National Route A001
• Santa Fe Provincial Highway 01

• Highway 1 (Australia), a highway connecting all of the country's state capitals and also Darwin, Northern Territory.
• All Motorways in the route of National Highway 1
• Tolled Motorway in the route of National Highway 1
• All roads with national significance on National Highway 1
• In QLD and WA
• Part of it is the NT and SA
• Ring Route 1, South Australia
• – Detour of the M1 Pacific Motorway
• Wollogorang Road (Borroloola to Queensland Border) replaces National Route 1
• Highway 1 (Tasmania)

• West Autobahn

• N1

• M1 highway (Belarus)

• Autoroute A1 - Autosnelweg A1 - Autobahn A1

• A1 (Bosnia and Herzegovina)

• Trakia motorway
• I-1 road (Bulgaria)

• National Highway 1 (Cambodia)

Parts of the Trans-Canada Highway

• Alberta Highway 1
  • Alberta Highway 1A
  • Alberta Highway 1X
• British Columbia Highway 1
  • British Columbia Highway 1A
• Manitoba Highway 1
  • Manitoba Highway 1A
• Newfoundland and Labrador Route 1
• Prince Edward Island Route 1
  • Route 1A (Prince Edward Island)
• Saskatchewan Highway 1

Other instances of Highway 1

• New Brunswick Route 1
• Nova Scotia Trunk 1
• Northwest Territories Highway 1
• Quebec Route 1 (former)
• Yukon Highway 1

• Chile Route 1

• G1 Expressway
  • G1N Expressway
  • G0111 Expressway
• S01 Expressway (Anhui)
• S1 Expressway (Guangdong)
• S1 Expressway (Henan)
• S1 Expressway (Hubei)
• S01 Expressway (Hunan)
• S1 Expressway (Shandong)
• S1 Expressway (Shanghai)
• S1 Expressway (Sichuan)
• S1 Expressway (Tianjin)
• S1 Expressway (Tibet)
• S1 Expressway (Zhejiang)

• National Route 1

• National Route 1

• Autopista A1
  • Autopista A1–1
• Carretera Central (N-1)
• Mantua–Isabel Rubio Road (1–1)

• A1 motorway (Cyprus)
• B1 road (Cyprus)

• D1 from Prague to Ostrava

• National Road 1 (Democratic Republic of the Congo)

• RN-1 (Djibouti)

• DR-1

• Estonian national road 1

• AP-1 Motorway (Equatorial Guinea)

• Finnish national road 1
• Åland Islands Highway 1

• Autoroute A1
• Route nationale 1

• S1 Highway
• SH1 Road (Georgia)

• Bundesautobahn 1 in Germany
• Bundesstraße 1 in Germany
  • Bundesstraße 1a, branch of Bundesstraße 1

• N1 road (Ghana)

• A1 motorway (Athens–Thessaloniki–Evzonoi)
• EO1 road

• Route 1 (Hong Kong)

• M1 motorway (Hungary)
• Main road 1 (Hungary)

• Route 1 (Iceland)

• NE 1

• NH 1
  • NH 1A
  • NH 1B
  • NH 1D

• SH 1, Andhra Pradesh
• SH 1, Karnataka
• SH 1, Kerala

• Indonesian National Route 1

• Freeway 1 (Iran)

• Freeway 1
• Highway 1

• M1 motorway (Republic of Ireland)
• N1 road (Ireland)

• Highway 1 (Israel–Palestine)

• Autostrada A1 (Italy)
• RA 1
• Strada statale 1
• T1

• National Route 1
• Meishin Expressway
• Tōmei Expressway
  • Isewangan Expressway
  • Shin-Meishin Expressway
  • Shin-Tōmei Expressway
• Route 1 (Hanshin Expressway) in Osaka
• Route 1 (Nagoya Expressway)
• Route 1 (Shuto Expressway) in Tokyo

• A1 highway (Kazakhstan)

• Route 1A (Laos)
• Route 1C (Laos)
• Route 1E (Laos)
• Route 1I (Laos)

• A1 road (Latvia)

• A1 highway (Lithuania)

• A1 motorway (Luxembourg)

• FT 1 Malaysia Federal Route 1
• North–South Expressway Northern Route North–South Expressway Northern Route

• FT 1 Malaysia Federal Route 1 (Sabah)
• FT 1 Malaysia Federal Route 1 (Sarawak)
• A1 Jalan Jelapang
• B1 Jalan Meru
• J1 Iskandar Coastal Highway
• K1 Jalan Bedong—Kuala Muda
• N1 Federal Route 1265 (formerly N1)
• P1 Jalan Permatang Bendahari

• A1 autoroute (Martinique)

• Mexican Federal Highway 1
• Mexican Federal Highway 1D

• M1 highway (Moldova)
• R1 road (Moldova)

• Rabat–Tangier expressway
• National Route 1 (Morocco)

• National Highway 1 (Myanmar)

• A1 road (Namibia)

• Mahendra Highway

• Rijksweg 1

• New Zealand State Highway 1
  • New Zealand State Highway 1B
  • New Zealand State Highway 1C

• NIC-1

• Route nationale 1 (Niger), main east–west highway

• A1 highway (Nigeria)

• A1 motorway (North Macedonia)

• Route 1 (Oman)

• M1 motorway (Pakistan)

• Highway 1 is the Pan-American Highway

• National Route 1

• Highway 1

• C-1 Circumferential Road 1
• R-1 Radial Road 1
• N1 highway (Philippines)
• E1 expressway (Philippines)

• A1 autostrada (Poland)
• Expressway S1 (Poland)
• National road 1 (Poland)

• A1 motorway (Portugal)

• Drumul Național 1
• A1 motorway (Romania)

• M1 highway (Russia)

• Autoroute A1
• N1 road (Senegal)

• A1 motorway (Serbia)

• D1 motorway (Slovakia)
• R1 expressway (Slovakia)

• A1 motorway (Slovenia)

• N1 road (South Africa)
• M1 (East London)
• M1 (Johannesburg)
• M1 (Pretoria)
• M1 (Durban)
• M1 (Port Elizabeth)

• Gyeongbu Expressway
• National Route 1

• Autovía A-1
• Autopista AP-1
• Autovía AS-I
• A1 motorway (Extremadura)
• Autopista GC-1
• R-1 motorway (Spain)
• A1 motorway (Aragon)
• Autovía RM-1

•  A1  Colombo-Kandy Road
•  E01  Southern Lanka Distributor

• A1 motorway (Switzerland)
  • A1a motorway (Switzerland)
  • A1h motorway (Switzerland)
  • A1l motorway (Switzerland)
  • A1.1 motorway (Switzerland)

• National Highway 1 (Taiwan)
• Provincial Highway 1 (Taiwan)

• T1 road (Tanzania)

• Thailand Route 1 (Phahonyothin Road)

• A1 motorway (Tunisia)

• Otoyol 1

• Highway M01 (Ukraine)
• Highway H01 (Ukraine)

• M1 motorway
• A1 road (Great Britain)

• A1(M) motorway

• A1 road (Isle of Man)
• A1 road (Jersey)
• M1 motorway (Northern Ireland)
• A1 road (Northern Ireland)

• Interstate A-1 (Alaska; unsigned)
• Interstate H-1 (Hawaii)
• U.S. Route 1
• U.S. Route 1A
• U.S. Route 1 Business (Georgia)
• U.S. Route 1 Business (Maryland)
• New England Route 1 (former)

State highway systems

• Alabama State Route 1
• Alaska Route 1
• Arkansas Highway 1
• California State Route 1; merges in some places with U.S. Route 101
• Colorado State Highway 1
• Delaware Route 1
• Delaware Route 1A
• Delaware Route 1B
• Delaware Route 1D
• Florida State Road A1A
• Georgia State Route 1
• Idaho State Highway 1
• Illinois Route 1
• Indiana State Road 1
• Iowa Highway 1
• K-1 (Kansas highway)
• Kentucky Route 1
• Louisiana Highway 1
• Massachusetts Route 1A, Alternate route of U.S. Route 1
• M-1 (Michigan highway)
• Minnesota State Highway 1
• Mississippi Highway 1
• Missouri Route 1
• Montana Highway 1
• Nebraska Highway 1
• Nebraska Spur 1B
• Nebraska Spur 1D
• Nevada State Route 1 (former)
• New Hampshire Route 1A, Alternate route of U.S. Route 1
• New Hampshire Route 1B, Alternate route of U.S. Route 1
• New Jersey Route 1 (former)
• New Mexico State Road 1
• New York State Route 1A (former)
• New York State Route 1B (former)
• New York State Route 1X (former)
• North Dakota Highway 1
• Ohio State Route 1 (former) (1920s)
• Ohio State Route 1 (former) (1960s)
• Oklahoma State Highway 1
• Pacific Highway No. 1 (Oregon)
• Pennsylvania Route 1 (former)
• Rhode Island Route 1A, Alternate route of U.S. Route 1
• Tennessee State Route 1
• Texas State Highway 1 (former)
• Texas State Highway Loop 1
• Texas State Highway NASA Road 1
• Texas Farm to Market Road 1
• Texas Ranch Road 1
• Utah State Route 1 (former)
• Secondary State Highway 1A (Washington) (former)

Routes in other areas

• American Samoa Highway 001
• Guam Highway 1
• Interstate PRI-1 (Puerto Rico; unsigned)
• Puerto Rico Highway 1
  • Puerto Rico Highway 1P

• Route 1 Gral. Manuel Oribe

• National Route 1 (Vietnam)
• National Route 1B (Vietnam)
• National Route 1C (Vietnam)
• National Route 1D (Vietnam)
• National Route 1K (Vietnam)

• T1 road (Zambia)
• M1 road (Zambia)

• First Avenue (disambiguation)
• First Street (disambiguation)

Preceded by 0

Lists of highways 1

Succeeded by 2