AA may refer to:

AA

Organizations and businesses

• The Albany Academy, an independent day school for boys in Albany, New York
• Albuquerque Academy, an independent day school in Albuquerque, New Mexico
• Alcoa, an American aluminium-producing company with the stock ticker symbol AA
• Alcoholics Anonymous, a worldwide fellowship of persons recovering from alcoholism
• Aligned Assets, a UK software house specialising in gazetteer management systems
• Alvesta Alternative, a political party in Sweden
• Amalgamated Association of Iron and Steel Workers, a former union in the United States
• American Apparel, a clothing company in the United States
• American Atheists, an organization advocating for atheists in the United States
• Amir Adnan, a Pakistani fashion label for men
• Andecha Astur, an Asturian nationalist party
• Annuaires Afrique, an African online directory
• Apollo Alliance, an organization advocating energy independence and renewable energy for the United States
• Architects' Association of Denmark (Akademisk Arkitektforening)
• Architectural Association School of Architecture, London
• The Automobile Association, a British motoring organisation
• Foreign Office (Germany) (Ausw rtiges Amt), the Foreign Office of Germany

Transportation

• AA, a former name of the K line, a defunct line on the New York City Subway
• Adelaide Airport, Australia
• Aerol neas Argentinas, an Argentine airline
• Air America (airline), a CIA front that supplied covert operations during the Vietnam War
• AirAsia, a Malaysian airline
• American Airlines, IATA airline code
• Ann Arbor Railroad (disambiguation), a railroad connecting Ann Arbor, Michigan and Toledo, Ohio in the United States
• Austrian Airlines, the flag carrying airline of Austria
• NZR AA class, a locomotive class operated by the New Zealand Railways Department

See also

• Automobile Association (disambiguation)
• The Automobile Association (Ireland), an Irish motoring organisation
  • within a country to refer to the Automobile Association of that country, such as the New Zealand Automobile Association
• AA Motoring Trust, a British road safety charity that merged with IAM Motoring Trust
• AA Publishing, a trading name of The Automobile Association in the UK

Sports, games and pastimes

• Ace Attorney, a series of courtroom based video games called Gyakuten Saiban in Japan.
• America's Army, a computer game published by the U.S. Army
• American Association (19th century), baseball
• American Association (20th century), baseball
• American Association of Independent Professional Baseball started in 2006
• Ancient Anguish, an LPMud (computer game) in existence since 1992
• Class AA, a level in the Farm System of minor league baseball

Science, medicine, mathematics and computing

• A (lava flow), a type of basaltic lava flow
• AA, or Advanced Architecture, original name of Amiga Advanced Graphics Architecture
• AA amyloidosis, a form of amyloidosis related to Serum amyloid A
• AA postulate of Euclidian geometry
• Academia de Artes, Mexico
• Aggregatibacter actinomycetemcomitans, a species of bacteria found to be in association with certain types of periodontal disease
• Amino acid
• Amplitude of accommodation, a measurement of the eye's ability to focus clearly on objects at near distances
• Antarctic Impulse Transient Antenna, also known as AA-experiment
• Anti-aliasing, a computer graphics technique
• Aortic aneurysm
• Arachidonic acid, a polyunsaturated fatty acid
• ASCII art, an artistic medium in which pictures are composed of symbols taken from the ASCII computer character set
• Atlas Autocode, a computer programming language
• Atomic absorption spectroscopy, an instrument for measuring the content of metal in samples

Other

• AA battery size
• AA Brassiere measurement
• AA certificate - a film rating used by the British Board of Film Classification Censors between 1970 and 1982, restricting audiences to those aged 14 and over
• Abhisamayalankara, or Abhisamaya-ala k ra, a Mahayana Buddhist text.
• Affirmative action, a social policy dealing with underrepresented minorities
• African American
• Agreement on Agriculture, a WTO treaty
• Air attach , usually a high-ranking air force officer on the staff of an embassy
• Alisha's Attic, British pop/rock group
• Amon Amarth
• Antarctica, World Meteorological Organization country code
• Anti-aircraft warfare, a military term for combat against airborne enemies from the ground
• Anti-aliasing filter a filter used in digital signal processing
• Aruba (DAFIF 0413 / DIA 65-18 / FIPS PUB 10-4 territory code)
• Asian Aerospace, the biggest airshow event in Asia
• Asian American
• Associate of Arts degree
• Assumptionists, the Augustinians of the Assumption, a congregation of Catholic religious (priests and brothers)
• Audio Adrenaline
• Audio-Animatronics
• Ayt Ayache
• The production code for The Savages (Doctor Who), a Doctor Who serial

A A

• A A , (Latin: Argenteum Astrum), a magical order created by Aleister Crowley

Aa

• , letter found in several languages including Swedish, Norwegian and Danish, which can be alternatively transcribed as "aa" (not in Swedish).
• Aa River (disambiguation), the name of several waterways in Europe
• Aa! Megami-sama or Oh My Goddess!, a popular anime/manga series
• Aa (Big A Little a), an American noise rock group
• Aa!, a J-Pop musical group
• Aa (architect), an architect in ancient Egypt
• Aa (lava flow), a type of lava (see below)
• Aa (plant), a genus of orchid
• Aa, Estonia, a village on northern coast of Estonia
• AUTOart, a high quality die cast model car manufacturer

People with the surname Aa

• Van der Aa, a Dutch name
  • Abraham Jacob van der Aa (1792 1857), Dutch literator
  • Christianus Petrus Eliza Robid van der Aa (1791 1851), Dutch jurist and author
  • Cornelis van der Aa (1749 1816), Dutch bookseller
  • Dirk van der Aa (1731 1809), Dutch rococo painter
  • Michel van der Aa (born 1970), Dutch composer
  • Petrus van der Aa (1530 1594), a Flemish jurist
  • Philips van der Aa, a Dutch statesman during the Eighty Years' War
  • Pieter van der Aa (1659 1733), a Dutch publisher
• Brynjar Aa, a Norwegian dramatist
• Terje Aa, bridge player

People with first initials A. A.

• A. A. Ames (1842 1911), American soldier and politician, multi-term mayor of Minneapolis, Minnesota
• A. A. AbouTaleb, Egyptian squash player
• A. A. Belopolsky (1854 1934), Russian astronomer; Aristarkh Belopolsky
• A. A. Caruana (1830 1905), Maltese archaeologist and author; see Antonio Annetto Caruana
• A. A. Common (1841 1903), English amateur astronomer; see Andrew Ainslie Common
• A. A. Birch, Jr. (born 1932), American jurist first African American Chief Justice of the Tennessee Supreme Court
• A. A. Englander (1915 2004), British television cinematographer
• A. A. Griffith (1893 1963), English engineer; see Alan Arnold Griffith
• A. A. Luce (1882 1977), Irish philosopher
• A. A. Milne (1882 1956), English author and playwright, creator of Winnie-the-Pooh

'A'

• A (lava flow), one of three basic types of lava flow

aA

• abampere, the CGS unit of current
• attoampere, 10 ¹⁸ ampere, a unit of electric current

aa

• Aa (digraph), see List of Latin digraphs
• Afar language, ISO 639 alpha-2 language code
• Amino acid, a subunit of which proteins are constituted
• Authoritative Answer, in DNS a flag for query answer

.aa

• a proprietary digital audio format of Audible.com

Aa.

• Aa., medical abbreviation for arteria, or artery

Double A

• Double A (band), Korean K-pop boy band

See also

• (disambiguation)
• AAAA (disambiguation)
• AAA (disambiguation)
• A (disambiguation)

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