A2 is a letter-number combination. The terms A2, A02, A002, A², A.II or A-2 may refer to:

Media [link]

Gaming 

• A2 Racer, a 1997 Dutch racing computer game series
• A2 - Secret of the Slavers Stockade, a 1981 adventure module for the Dungeons & Dragons fantasy role-playing game
• Final Fantasy Tactics A2: Grimoire of the Rift

Music 

• A1 A2, a 2000 EP by New Zealand band Pluto
• A2, an Iranian hip hop artist
• A due, a musical term often abbreviated to a2
• Animusic 2, the second in the Animusic series

Radio 

• Radio Station A2, a radio station in Lithuania

Television 

• A2 (remote television production), a crew position that assists with audio equipment
• A2 Stereo or Zweikanalton, an analogue television broadcasting system
• Antenne 2 or France 2, a French public TV network
• Ajankohtainen kakkonen, a Finnish investigative journalism-based news magazine

Theatre 

• A2 (theater), a stagehand who manages microphones for a performance

Military [link]

Tanks 

• M1A2, a version of the American M1 Abrams tank
• M60A2, a version of the American M60 Patton tank

Rockets 

• A2 (rocket), a German design of rocket during World War II

Rifles & Guns 

• AUG A2 Commando, a variant of the Austrian Steyr AUG rifle
• M15A2, an automatic electric gun produced by Classic Army
• M16A2 rifle

Submarines 

• A2 type submarine, a single submarine of the Imperial Japanese Navy during World War II
• HMS A2, a Royal Navy A-class submarine

Marine weapons 

• Polaris A-2, an American submarine-launched missile model
• M16A2 mine

Other 

• A-2 jacket, a leather flight jacket
• A2, the military staff designation in the continental staff system for air force headquarters staff concerned with intelligence and security
• A 2, Göta artilleriregemente designation, a former Swedish Army artillery regiment

Sciences [link]

Biology [link]

genes 

• A-box 2 of insulin gene
• HLA-A2, a human MHC HLA-A serotype

proteins & receptors 

• A2, a subfamily of rhodopsin-like receptors
• Ectodysplasin A2 receptor, a protein that in humans is encoded by the EDA2R gene.
• Alpha-2 adrenergic receptor
• Annexin A2
• Apolipoprotein A2

enzymes 

• Phospholipase A2, an enzyme
• Prokaryotic phospholipase A2, an enzyme

hematology 

• Hemoglobin A2

immunology 

• Proanthocyanidin A2, a A type proanthocyanidin.

renal 

• Urea transporter A2

plant & vegetation 

• British NVC community A2 (Lemna minor community), a plant community

insects 

• the second anal vein in the Comstock-Needham system of insect wing segment naming

Medicine [link]

• A2, a variant of blood groups alleles A in ABO blood group system
• ATC code A02 Drugs for acid related disorders, a subgroup of the Anatomical Therapeutic Chemical Classification System
• Brachydactyly type A2, a disease
• Benzylpiperazine, a drug with a high affinity action at the alpha2-adrenoreceptor
• The secondary auditory cortex of the brain

Technology [link]

Computers, Programming & Internet 

• A-2 (programming language), a follower of the A-0 System used on UNIVAC I
•  %A2, the percent-encoding version of the (¢) character
• A2, Bluebottle OS, a computer operating system
• PowerPC A2, a high-speed Power Architecture CPU
• A2 Hosting – a Linux Hosting company

Consumer Electronics 

• Toshiba HD-A2, a 2006 Japanese HD DVD player
• Cowon A2, a portable multimedia player from Cowon Systems, Inc.
• A2 Aviator, an LED flashlight by SureFire
• DiMAGE A2, a digital camera produced by Minolta

Steel 

• A-2 tool steel, an air-hardening SAE grade of tool steel
• A2, or SAE 304, a grade of stainless steel for fasteners

Other 

• А1 and А2, two radioactive sizes
• DIN4102 A2, a flammability rating for materials ~98% noncombustible

Sport [link]

• A2 baseball league (Italy), the second Italian baseball league after the A1 league
• A2 basketball league (Greece)
• A2 volleyball league (Italy)
• A2 volleyball league (Portugal)
• A2 women's volleyball league (Portugal)
• a grade in climbing

Transportation [link]

Air Transport [link]

• A2, Botswana aircraft registration code
• A2, Cielos Airlines IATA code

Vehicles [link]

aircraft 

• A-2 Savage or AJ Savage, an aircraft
• Abrial A-2 Vautour, a French sailplane built in 1925.
• Antonov A-2, a Soviet glider.
• Breda A.2, a 1921 Italian aircraft.
• Fokker A.II, a German aircraft.
• Nikol A-2, 1939 a prototype of a Polish amphibious flying boat.
• Pfalz A.II, a German Idflieg A-class designation aircraft.
• Reaction Engines A2, a design study for a hypersonic airliner under development.

cars 

• Anadol A2, a 1970 Turkish car.
• Arrows A2, a 1979 British racing car
• Audi A2, a 1999 automobile
• Audi Quattro A2, a 1984 rally car evolution of the Audi Quattro
• Merzario A2, see template:F1 cars 1979

railways 

• Bavarian A II, a 1847 German steam locomotive model
• LNER Class A2, a class of steam locomotives
  • LNER Peppercorn Class A2
  • LNER Thompson Class A2 (disambiguation)
• Milwaukee Road class A2, a 1901 4-4-2 type steam locomotive
• PRR A2, American PRR 0-4-0 type steam locomotive, see Template:PRR locomotives
• Prussian A 2, a German railbus model, see List of Prussian locomotives and railbuses
• SP&S Class A2, a 1887 steam locomotives class
• Victorian Railways A2 class, a 1907 Australian steam locomotive

rockets 

• Saturn A-2, a 1959 American rocket

ships 

• T2-SE-A2, a type of oil tanker constructed and produced in large quantities in the United States during World War II

Land transport routes [link]

• A2 road, in many countries
• Route A2 (WMATA), a bus route operated by the Washington Metropolitan Area Transit Authority

Sea [link]

• Sea Area A2 as defined under the GMDSS system

Space [link]

• A-002, the third abort test of the Apollo spacecraft
• Aussat (Optus) A2, a 1985 Australian satellite

Other uses [link]

• A2 paper size, an international standard paper size (420×594 mm) defined by ISO 216
• A-2 visa, a document given to officials representing a foreign government inside the United States of America
• A2-level, an education qualification in England, Wales and Northern Ireland
• A2 milk, a trademark of the A2 Corporation
• A02, Bird's Opening Encyclopaedia of Chess Openings code

Languages 

• Biu-Mandara A.2 languages, an Afro-Asiatic family of languages spoken in Nigeria
• A2, a second language level in the IB Group 2 subjects
• A2, a level in the Common European Framework of Reference for Languages

Places 

• A2, a town and country planning use class in the UK, see Town and Country Planning (Use Classes) Order 1987
• A² or A2, a nickname for Ann Arbor, Michigan

See also [link]

• 2A (disambiguation)

This disambiguation page lists articles associated with the same title formed as a letter-number combination. If an internal link led you here, you may wish to change the link to point directly to the intended article.