A1

The term A1 or A-1 may refer to:

Entertainment and broadcasting

• A1 (TV channel) is a television channel in Macedonia
• A1 (band), Anglo-Norwegian boy band with the 1999 single "Be the First to Believe"
• A1 (comic) is a British anthology comic created in 1989
• America One, a television network in the United States, successor to Channel America
• A1, nickname for fictional character Battle Angel Alita, as her nickname on Tuned days
• A1, or Adventure One, a TV channel now known as National Geographic Adventure or "Nat Geo Adventure"

Commercial products

• Canon A-1, a camera by Canon, manufactured from 1978-1985
• A1 Steak Sauce, a brand of condiment

Sports

• A1 Grand Prix series
• A1 Ethniki is the top Greek basketball league
• A1 Volleyball is a Greek volleyball league
• A1 Ring, the Österreichring race track at which the Austrian Grand Prix was run
• A1, a stage name for Alastair Ralphs (b. 1977), professional wrestler

Transportation

• Audi A1, super-mini automobile to be released in 2009
• A-1 Skyraider, a United States Air Force/Navy single-seat attack bomber
• LB&SCR A1 class locomotices designed by Stroudley and known as the Terriers.
• LNER Class A1/A3,a locomotive designed by Sir Nigel Gresley,including the famous Flying Scotsman
• LNER Peppercorn Class A1 a Pacific locomotive designed by A. H. Peppercorn
• A1, the UIC classification for 0-2-2 the Whyte notation for railway locomotive wheel arrangements
• Plan A1, the codename for the high-speed railway to Jerusalem

Shipping

• A1 (shipping), a symbol indicating shipbuilding quality
• HMS A1, a British A class submarine of the Royal Navy
• USS A-1, multiple US Navy ships

A1 Roads

• A1 is the designation for the Majority of the Highway 1 route in Australia.
• A1 Westautobahn, a motorway in Austria
• A1 road (Belgium), Brussels - Antwerp - Breda
• Trakiya motorway in Bulgaria, carrying the code A1, connecting Sofia and Burgas via Plovdiv.
• A1 highway (Bosnia and Herzegovina), carries Corridor Vc
• A1 highway (Croatia), connects the capital Zagreb to the second largest city located in Dalmatia, Split and continues on to Dubrovnik (finished up to Šestanovac)
• A1 motorway (Cyprus), connecting Nicosia to Limassol
• A1 highway (Kenya), long road in Kenya from Tanzanian to Sudanese border
• A1 autoroute (France)
• Bundesautobahn 1 (Germany) connecting Oldenburg (Holstein) to Saarbrücken
• A1 road (Great Britain), a key artery connecting London to Edinburgh, and many towns and cities in between. See A1 road (London) for the London sections of the road
• A1 Motorway (Italy), connecting Milan to Naples
• A1 road (Isle of Man), connecting Douglas and Peel
• A1 highway (Lithuania), connecting Vilnius to Klaipėda
• A1 road (Luxembourg), connecting Luxembourg City to the German A64
• A1 motorway (Netherlands), connecting Amsterdam to Enschede and further on to Germany (direction Osnabrück)
• A1 road (Northern Ireland), connecting Belfast to Newry and to Dublin in the Republic of Ireland via the N1/M1.
• Autostrada A1 (Poland) - planned highway that will span Poland from north to south.
• A1 - Auto-estrada do Norte, in Portugal, connecting Lisbon and Porto
• A1 (Romania), connecting Bucharest to Piteşti
• A1 motorway (Slovenia), connecting Maribor to Koper via Ljubljana
• Autovía A-1, is a Spanish autovía connecting Madrid to Irún (French border).
• A1 road (Sri Lanka), a trunk road connecting the capital city of Colombo to Kandy
• A1 (Switzerland), connecting St. Margrethen to Geneva
• Interstate A-1 in Alaska
• National Road 1A (Vietnam), connecting the northernmost and southernmost areas of the country
• A1 (Zimbabwe), National Route in Zimbabwe

Other uses

• A1 (star) Massive binary star system located in NGC 3603.
• A1 Mine Settlement, Victoria, a town in Victoria, Australia
• A1 broth, substance used in microbiology used to detect fecal coliforms
• Company A-1, An outfit in the Texas A&M Corps of Cadets
• HLA-A1 is a Human MHC genetic Serotype
• A1, a computer security class
• A1, a German rocket design in the Aggregate series from the 1930s
• A1, theater term for a sound operator
• A1 Company, a company in Hong Kong
• A1, code-name for the Microsoft security service Windows Live OneCare
• A1, the paper size and type ISO 216
• A1, a level in the Common European Framework of Reference for Languages
• A1, recovery business based in Merseyside