This is a list of roads designated A3. Roads entries are sorted in the countries alphabetical order.

• A003 road (Argentina), a road connecting the junction with National Route 9 and Camino de Cintura to Tigre
• A3 road (Australia) may refer to :
  • A3 (Sydney), a road in Sydney connecting the Northern Beaches and Southern suburbs
  • Cross Road, Adelaide, a road connecting Plympton, Adelaide and Glen Osmond
  • Tasman Highway, a road connecting Hobart and Launceston
  • Burnett Highway, Queensland
  • D'Aguilar Highway, Queensland
  • Gympie Road, Brisbane, Queensland
  • New England Highway, Queensland
• A3 motorway (Austria), a road connecting Knoten Guntramsdorf and Ebreichsdorf
• A3 motorway (Belgium), a road connecting Brussel and Liège
• A3 motorway (Bulgaria), a road connecting Sofia (via A6) and the border crossing to Greece, at the village of Kulata
• A3 highway (Botswana), connecting Francistown and Maun
• A3 motorway (Croatia), a road connecting the border crossings with Slovenia and Serbia and passing through Zagreb
• A3 motorway (Cuba), a road connecting Havana and Melena del Sur
• A3 motorway (Cyprus), a road connecting Larnaca and Ayia Napa
• A3 motorway (France), a road connecting Montreuil-sous-Bois, Rosny-sous-Bois and Bondy
• A3 motorway (Germany), a road connecting Wesel and Passau
• A3 motorway (Greece), a road connecting Lamia and Grevena
• A3 motorway (Italy), a road connecting Naples and the Reggio Calabria
• A3 road (Jamaica), a road connecting Kingston and Saint Ann's Bay
• A3 highway (Kazakhstan), a road connecting Almaty to Oskemen
• A3 road (Kenya), a road connecting to Liboi at the Somali border
• A3 road (Latvia), a road connecting Inčukalns and the Estonian border in Valka
• A3 highway (Lesotho), a road connecting Mantsonyane and Thaba-Tseka
• A3 highway (Lithuania), a road connecting Vilnius and Minskas
• A3 motorway (Luxembourg), a road connecting Luxembourg City to Dudelange
• A3 road (Malaysia), a road in Sabah
• A3 motorway (Morocco), a road connecting Casablanca and Rabat
• A3 highway (Nigeria), a road connecting Port Harcourt to the Republic of Cameroon at north-east Nigeria
• A3 road (People's Republic of China) may refer to :
  • A3 expressway (Shanghai), the former name of the S3 expressway, a planned expressway in Shanghai
• A3 autostrada (Poland), a formerly planned motorway in western Poland
• A3 motorway (Portugal), a road connecting Porto and Braga
• A3 motorway (Romania), a road planned to connect when fully constructed Bucharest to the western border near Oradea
• A3 motorway (Serbia), a road connecting Belgrade and Croatian border
• A3 motorway (Slovenia), a road connecting Gabrk and Fernetiči at the Italian border
• A3 road (Spain) may refer to :
  • A-3 motorway (Spain), a road connecting Madrid and Valencia
  • A3 motorway (Extremadura), a road connecting Zafra and Jerez de los Caballeros
• A3 motorway (Switzerland), a road connecting Basel and Sargans
• A 3 road (Sri Lanka), a road connecting Peliyagoda and Puttalam
• A3 motorway (Tunisia), a road connecting Tunis and Oued Zarga
• A3 road (United Kingdom) may refer to :
  • A3 road (Great Britain), a road connecting London and Portsmouth
  • A3 road (Isle of Man), a road connecting Castletown and Ramsey
  • A3 road (Northern Ireland), a road connecting Lisburn and Middletown
• A3 road (United States of America) may refer to :
  • Interstate A-3, a road connecting Anchorage and Soldotna
  • County Route A3, a road connecting Standish and Buntingville
• A3 road (Zimbabwe), a road connecting Manicatown and Harare via Chitungwiza

See also

• List of highways numbered 3

This article includes a list of roads, streets, highways, or other routes that are associated with the same title.
If an internal link led you here, you may wish to change the link to point directly to the intended article.