AA

• ''America's Army'', a 2002 computer game published by the U.S. Army • Ancient Anguish, a computer game in existence since 1992 • Aa!, a J-Pop musical group • AA (band), South Korean boy band • Aa (album), a 2016 album by Baauer • AA (song), a 2021 single by Walker Hayes • Ace Attorney, a series of video games developed by Capcom. • AA Films, an Indian film distribution company • All American (TV series), a 2018 American sports drama television series • AA Book (disambiguation) • AA, the production code for the 1966 Doctor Who serial The Savages • Academy Award, in the film industry == Brands, organizations and enterprises ==

• Alcoholics Anonymous, support organization • A. A. Arms, a defunct firearms manufacturer • Aerolíneas Argentinas, an Argentine airline • AirAsia, an airline • Air Austral airline, former logo • Alcoa, a US aluminum producer, stock symbol • American Airlines, IATA code • Anadolu Agency, press agency, Turkey • Arakan Army, Rakhine State, Myanmar, a rebel group • Audio-Animatronics, used at Disney Parks • Ascend Airways • Academia de Artes, Mexico • Former US Amalgamated Association of Iron and Steel Workers • Architectural Association School of Architecture, London, United Kingdom • Astrological Association of Great Britain, London, UK • Auswärtiges Amt, the Foreign Office of Germany • Danish Association of Architects (Akademisk Arkitektforening) • The AA, UK motoring organization • AA Ireland, an Irish automotive services company • AA Motoring Trust, merged into IAM Motoring Trust == Education ==

• Albuquerque Academy, independent school in Albuquerque, New Mexico • Associate of Arts, an academic degree == Philosophy and religion ==

• Aa Church, a church in Aakirkeby on the island of Bornholm • A∴A∴, a spiritual organization created in 1907 by Aleister Crowley • Abhisamayalankara, or Abhisamaya-alaṅkāra, a Mahayana Buddhist text • Augustinians of the Assumption, a congregation of Catholic religious (priests and brothers) • Statue of A'a from Rurutu, a wooden fertility-god sculpture from the Pacific island of Rurutu • "A is A", an expression of the law of identity: each thing is identical with itself • Iah, an ancient moon deity • AA or A.A. (After Adam), year notation in the Mandean calendar == Language ==

• aa, Latin-script digraph used in the orthographies of Dutch, Finnish, and other languages • aa, representation of letter Å in several Scandinavian languages • aa, a romanization of Arabic letter alif • , an orthographic ligature • Afar language (ISO 639-1 language code aa) • Aa (Bengali), a Bengali letter ==Measurements==

• AA, a bra size • AA, a width in shoe sizes • AA battery size == Nature ==

• Aa (plant), a genus of orchid • Aa (gastropod), a subgenus of snail • Aā or aa, a form of lava • A term for "river" in German hydronymy, see Aach (toponymy) == People ==

• Aa (surname), a Scandinavian surname, including a list of people with this name • Van der Aa (surname), a Dutch surname, including a list of people with this name • Aa (architect), an architect in Ancient Egypt • Anthony Armstrong (writer) (1897–1972), Anglo-Canadian writer who used the pseudonym A.A. when writing for Punch • Allu Arjun (born 1982), Indian actor, often abbreviated as AA in film titles ==Places==

• Aa, Estonia, a village and beach in Estonia • Aa, Indonesia, a populated place in the South Sulawesi province of Indonesia • Albania, LOC MARC code • Ann Arbor, a city in Michigan, United States of America • Anne Arundel County, a county in Maryland, United States of America • Antarctica, WMO country code • Aruba, FIPS country code == Rivers ==

Belgium • Aa (Nete), in the province of Antwerp, tributary of the Nete France • Aa (France) Germany • Aabach (Afte), formerly Große Aa, North Rhine-Westphalia • Aa (Möhne), North Rhine-Westphalia • Aa (Nethe), North Rhine-Westphalia • Aa (Werre), North Rhine-Westphalia • Bocholter Aa, North Rhine-Westphalia • Dreierwalder Aa, North Rhine-Westphalia • Kleine Aa (Aabach), a tributary of the Aabach in North Rhine-Westphalia • Große Aa, a tributary of the Ems in Lower Saxony • Große Aa (Aabach), a tributary of the Aabach in North Rhine-Westphalia • Münstersche Aa, North Rhine-Westphalia • Schaler Aa, Lower Saxony and North Rhine-Westphalia • Speller Aa, Lower Saxony and North Rhine-Westphalia • Steinfurter Aa, North Rhine-Westphalia Netherlands • Aa (Meuse), North Brabant • Aa of Weerijs, North Brabant • Drentsche Aa, Drenthe and Groningen • , a river in Westerwolde, Groningen Switzerland • Aabach (Aare), a tributary of the Aare, in Aargau canton • Aabach (Greifensee) or Ustermer Aa, in canton of Zürich • Aabach (Obersee), a tributary of Obersee (Zürichsee), in canton of St. Gallen • Aabach (Seetal), in the cantons of Lucerne and Aargau • Chli Aa (Sempachersee), a tributary of Lake Sempach in the canton of Lucerne • Engelberger Aa, in the cantons of Obwalden and Nidwalden • Gross Aa (Sempachersee), a tributary of Lake Sempach in the canton of Lucerne • Mönchaltorfer Aa, a tributary of Greifensee in canton of Zürich • Sarner Aa (river), Obwalden, tributary of Lake Lucerne Latvia • Gauja, Latvia, formerly known as Livländische Aa • Lielupe, Latvia, formerly known as Kurländische Aa == Science and technology ==

• AA amyloidosis • Abstract algebra, a branch of mathematics • Anesthesiologist assistant, see certified anesthesiologist assistant • Aplastic anemia, a disease • Arachidonic acid, a polyunsaturated fatty acid • Advanced Architecture, later Amiga Advanced Graphics Architecture • Atlas Autocode, a computer programming language • AA, Audible.com file format • Authoritative Answer bit, in DNS, a flag for a query answer • AA postulate of Euclidean geometry • Anti-aircraft, in military use • Attoampere (aA), 10−18 Ampere, a unit of electric current • AA tree in computer science • Abbreviation for azidoazide azide • Internet slang for ASCII Art • Japanese internet slang for Shift JIS art • Adobe Animate, an animation software == Sports ==

• Double-A (baseball) or Class AA, a Minor League Baseball classification level • American Association (1882–1891), US baseball league • American Association (1902–1997), US baseball league • American Association of Professional Baseball, North American baseball league • Athletics Australia • All-America, American amateur athletic award • Amateur Athletic Union, US, since 1884 == Transportation ==

• AA Highway, Kentucky, US • Former Ann Arbor Railroad (1895–1976), Ohio and Michigan • Ann Arbor Railroad (1988), Ohio and Michigan • Former K line, New York City Subway, formerly "AA" • NZR AA class, a New Zealand locomotive class • Magelang, Purworejo, Kebumen, Temanggung and Wonosobo (vehicle registration prefix AA) == Other uses ==

• Anna's Archive, search engine for shadow libraries • Asian Aerospace, an air show in Asia • European Union Association Agreement • Postal abbreviation for the United States armed forces in the Americas == See also ==