A1, A 001, A-One, or similar may refer to:
Arts and entertainment Film A1 Film Company, a Burmese cinema company A-1 Headline, a 2004 Hong Kong film A-1 Pictures, a Japanese animation studio (English title: Our Man in Jamaica), a 1965 Italian film A1, a 1999 Syrian film; see List of Syrian films A1 (2019 film), Indian Tamil film
Games A1 Games, an American video game publisher for the PlayStation; see List of PlayStation games (A–L) A-1 Supply, a former name of American gaming machine manufacturer International Game Technology A1 – Slave Pits of the Undercity, a component of Scourge of the Slave Lords adventure module for Dungeons & Dragons Larsen's Opening (ECO code: A01), a chess move A1, a square on a chessboard
Music and dance Albums A1, an album by Ertuğ Ergin A1, an album by Tony Cetinski A One, an album by Ayumi Hamasaki A1 (album), 2002, by the British–Norwegian band A1
Musical artists Aone Beats or Aone, music producer A-1, an American rap group behind the album Mash Confusion A-One (band), a Mandopop group A1 (group), a British–Norwegian boy band A1 x J1, a British hip hop duo Floyd Bentley (born 1987), record producer and reality TV star also known as A1
Other uses in music and dance A1, a part in contra dance choreography A-1 Sound Studios, a recording studio owned by Herb Abramson
Radio CHIN (AM) (promotional name: A1), a station in Canada A1, a Slovenian radio network owned by Radiotelevizija Slovenija A-1 Detective Agency, a fictional detective agency in the radio series I Love a Mystery
Publications A1 (comics), a comics anthology A-1 Comics, a 1944–1955 Golden Age comics publication A1—The Great North Road, a book by Paul Graham
Television A-One (TV channel), a Russian music channel A-1 Pictures, a Japanese animation studio A1 Report, a television station in Albania A1 Televizija, a former channel in the Republic of North Macedonia America One, an American television network
Other uses in arts and entertainment Front of house engineer or A1, a type of sound operator Floyd Bentley (born 1987), record producer and reality TV star also known as A1 A-One (graffiti artist) (born 1964) American graffiti artist
Education Certifications A1, the Basic Language Certificate of the Common European Framework of Reference for Languages A1, a baccalauréat series in the education system of some parts of France A1, a baccalaureate in the Gabonese education system; see Education in Gabon A1, the highest category of Qualified Flying Instructor in the Central Flying School of the UK Royal Air Force
Grades A1, a grade for the Leaving Certificate, Ireland A1, a grade for the Sijil Pelajaran Malaysia examination, Malaysia A1, a grade for the Senior Secondary Certificate Examination; see Education in Nigeria A1, a grade for the Singapore-Cambridge GCE Ordinary Level, Singapore A-1, an academic grade in Pakistan
Other uses in education Language A1, the former name for "Language A: literature", one of the IB Group 1 subjects A1, a secondary school subdivision in the Congolese education system
Military List of A1 weapons A-1 Skyraider, a US military attack aircraft A-1 flying jacket, the predecessor of the A-2 flying jacket Company A-1, an outfit in the Texas A&M Corps of Cadets Svea Artillery Regiment, a Swedish Army regiment A-1 (code), the designation for a code used by the US Navy during World War I A1, a designation of military staff in the continental staff system A-1, a grade of Republic of China; see Orders, decorations, and medals of the Republic of China Forces A1, a naval force in the Battle of Crete; see Crete order of battle AMX International AMX (Brazilian Air Forces designation: A-1), an aircraft Kampfgeschwader 53 (identification symbol: A1), a Luftwaffe bomber wing during World War II
Politics and government A-1 visa, a non-immigrant US visa for governmental officials A1, an electoral alliance in Suriname; see List of political parties in Suriname A1, a class of South Korean visa A-1, a classification in the status of Indian cities A1, a rank in the European Civil Service A1, one of the planning use classes in Wales A1, a classification of race by law enforcement in England and Wales
Places A1 Mine Settlement, Victoria, Australia Zone A1, a zone in the Alonissos Marine Park, North Aegean Sea, Greece
Science and technology Astronomy A1, a stellar classification A1, a subobject designation; for example NGC 3603-A1
Biology List of A1 genes, proteins or receptors A1 broth, a substance used to detect fecal coliforms ATC code A01 Stomatological preparations, a subgroup of the Anatomical Therapeutic Chemical Classification System Combretastatin A1, a potent cytotoxic agent HLA-A1, a human leukocyte antigen serotype Proanthocyanidin A1, an A type proanthocyanidin Primary auditory cortex, the region of the cerebral cortex where sound is processed Vitamin A1, the animal form of vitamin A A1, a segment of the anterior cerebral artery A1, the first anal vein in the Comstock-Needham system of insect wing vein naming Noradrenergic cell group A1 A1, a mating type of Phytophthora infestans, the cause of potato blight
Computing Acer Aspire One, a netbook computer A1 Superlink, an Australian Internet service provider merged in 2000 into the ISP Froggy A1 Telekom Austria, an Austrian mobile network operator, and its subsidiaries A1 Slovenija, the second largest telecommunications company in Slovenia A1 Bulgaria, mobile network operator in Bulgaria A1 Hrvatska, mobile network operator in Croatia A1 Belarus, mobile network operator in Belarus A1 Srbija, mobile network operator in Serbia A1 Macedonia, mobile network operator in North Macedonia A-1, a 1950s programming language successor to the A-0 System Windows Live OneCare (codename: A1), former computer security software A1, a class of computer security specified in the Trusted Computer System Evaluation Criteria A1 VSTi, a 2002 synthesizer software program produced by Waldorf Music
Earth sciences A1, a landslide classification factor A-1, a class in the AASHTO Soil Classification System
Electronics Canon A-1, a 35 mm SLR camera manufactured from 1978 to 1985 Canon XH-A1, a handheld prosumer HDV camcorder released in 2007 Minolta DiMAGE A1, a digital camera introduced in 2003 Sony HVR-A1, the prosumer version of the Sony HDR-HC1 camcorder, which was introduced in 2005 AVM A1-Card, an ISDN card produced by German company AVM GmbH Xiaomi Mi A1, a smartphone released in 2017, part of series Mi and Android One Samsung Galaxy A01, a smartphone released in 2020
Mathematics A¹ homotopy theory, a concept related to algebraic topology A1, an 1844 paper by mathematician Hermann Grassmann A1, the alternating group on a set with one only element
Nuclear physics
A.1 scale, an atomic time scale in the International Atomic Time standard A-1 (nuclear reactor), the second Soviet reactor KS 150 or A-1, a nuclear reactor in Czechoslovakia, decommissioned in 1979
Robotics
A-1, the first series of Disney's Audio-Animatronics figures Lely Astronaut A1, the first version of the Astronaut robot manufactured by Lely
Sports
A-1 (wrestler) (born 1977), Canadian professional wrestler A1 Ring, the former name for the Red Bull Ring, a motorsport circuit in Spielberg, Austria A1 sport league (disambiguation) A1, a climbing grade A1, a ranking in Keirin track cycling Class A1 (baseball), a defunct classification within Minor League Baseball A1 (classification), an amputee sport classification A1 Grand Prix, a motorsport racing series A-1 Liga, the top basketball league in Croatia HEBA A1, the top basketball league in Greece Phase A1, a phase in a combined driving equestrian competition
Transportation Land transportation Cars A1 Grand Prix car Anadol A1, a 1966 Turkish car Arrows A1, a 1978 British racing car Audi A1, a supermini automobile produced from 2010 Audi Quattro A1, a 1983 rally car Chery A1 Scania A1, a 1901 car Toyota A1, a 1935 car prototype A1, a Volkswagen Group A platform A-1, a 1939 Buick Roadmaster Series 81C used by Norwegian royalty
Motorcycles A1, a Haden frame A1, a Motosacoche motorcycle A-1, a 1976 Alligator Automatic A1, a Tomos motorcycle A1 Samurai, in the list of Kawasaki motorcycles
Roads
Other uses in land transportation Ayrshire Bus Owners (A1 Service), a bus operator in Scotland A1, a tyre code A1 registration plate, a UK vehicle registration plate
Rail Trains A1-class Melbourne tram Bavarian A I, an 1844 German steam locomotive model Ceylon Government Railway A1, steam locomotive class LB&SCR A1 class, a class of locomotives designed by Stroudley and known as the Terriers LNER Gresley Classes A1 and A3, a locomotive class designed by Sir Nigel Gresley, including the Flying Scotsman LNER Thompson Class A1/1, the rebuild of 4470 Great Northern by Edward Thompson LNER Peppercorn Class A1, a class of Pacific locomotives designed by Arthur Peppercorn NCC Class A1, 1901 Irish 4-4-0 passenger steam locomotives Pennsylvania Railroad class A1, an American PRR steam locomotive Prussian A 1, a 1907 German Prussian railbus SP&S Class A1, a 1907 steam locomotives class Type A1, a type of electric tram in Adelaide, Australia A1 (Guangzhou Metro car), a train model used on Guangzhou Metro Line 1
Other uses in rail A1 Steam Locomotive Trust, a charitable trust Nishi-magome Station (station number: A-01), a Japanese subway station RER A1, a branch of the RER A rapid transit line in France, to Saint-Germain-en-Laye station Tel Aviv–Jerusalem railway, built on the "A1 Route" 0-2-2 (UIC classification: A1), locomotive wheel arrangements
Air and space transportation Aircraft Jet A-1, a type of aviation fuel List of A1 aircraft A-1 (airship) Douglas A-1 Skyraider, an American single-seat attack aircraft Albastar A1, a glider Model 3 A-1, an Aeronautical Products rotorcraft; see List of rotorcraft Antigravity A1, a Chinese teleoperated quadcopter drone produced by Antigravity, a subsidiary of Insta360 AMX International AMX (Brazilian Air Forces designation: A-1), an aircraft
Spacecraft Rockets and launches A1, a model of German Aggregate series rocket from World War II Hermes A-1, a rocket in the Hermes project Saturn A-1, a 1959 American rocket Scout A-1, a 1965 American rocket A-001, the second abort test of the Apollo spacecraft
Satellites Anik A1, a Canadian satellite Aussat (Optus) A1, a 1985 Australian telecommunications satellite Orbcomm A1, a 1997 American low Earth orbit communications satellite Palapa A1, the first 1976 Indonesian Palapa satellite Superbird A1, a satellite put into orbit by an Ariane launch in 1992 Astérix (satellite) or A1, the first French satellite
Water transportation Surface vessels A-1 lifeboat USS A-1, several US Navy ships ARA Comandante General Irigoyen (A-1), an Argentine Navy auxiliary ship
Submarines HMS A1, a British A-class submarine of the Royal Navy Type A1 submarine, a type of Japanese Navy submarine HNoMS Kobben (A-1), a Royal Norwegian Navy submarine
Other uses in water transportation A1 (shipping), a symbol indicating shipbuilding quality Sea Area A1, a designation in the Global Maritime Distress Safety System
Other uses A1 paper size (59.4×84.1 centimetres or 23.4×33.1 inches) A1 or A-1, two investment grades for bonds A1, a country risk rating assigned by Compagnie Française d'Assurance pour le Commerce Extérieur A.1. Sauce, a brand of brown sauce A1, a colour grade used in shrimp marketing
See also
1A (disambiguation) A-1 Yola (disambiguation) AL (disambiguation) Alpha 1 (disambiguation) Aleph One (disambiguation) A10 (disambiguation)