ABA may refer to:

Aviation

AB Aerotransport AB Aerotransport (ABA) was a Swedish government-owned airline which operated during the first half of the 20th century and was merged into what would become the SAS Group. ABA was established on 27 March 1924 under the name Aktiebolaget Aerotran ...

, former Scandinavian airline * IATA airport code for Abakan International Airport in Republic of Khakassia, Russia

Businesses and organizations

Broadcasting

* Alabama Broadcasters Association, United States * Asahi Broadcasting Aomori, Japanese television station *

Australian Broadcasting Authority The Australian Broadcasting Authority was an Australian government agency whose main roles were to regulate broadcasting, radio communications and telecommunications. The Authority took over the functions of the Australian Broadcasting Tribunal ...

Education

Académie des Beaux-Arts (Kinshasa) An academy (Attic Greek: Ἀκαδήμεια; Koine Greek Ἀκαδημία) is an institution of tertiary education. The name traces back to Plato's school of philosophy, founded approximately 386 BC at Akademia, a sanctuary of Athena, the g ...

, Democratic Republic of the Congo * American British Academy, Oman

Sports

Basketball

ABA League The ABA League, renamed the ABA League First Division in 2017, is the top-tier regional men's professional basketball league that originally featured clubs from former Yugoslavia (Bosnia and Herzegovina, Croatia, Montenegro, North Macedoni ...

, Adriatic first-tier basketball league ** ABA League Second Division, Adriatic second-tier basketball league *

American Basketball Association The American Basketball Association (ABA) was a major professional basketball league that operated for nine seasons from 1967 to 1976. The upstart ABA operated in direct competition with the more established National Basketball Association thr ...

, defunct professional league (1967–1976) *

American Basketball Association (2000–present) The American Basketball Association (ABA) is an American semi-professional men's basketball minor league that was founded in 1999. ABA teams are based in the United States, with one traveling team from Japan. The league previously had internati ...

, semi-professional league * Australian Basketball Association, defunct semi-professional entity

Other sports

Amateur Boxing Association of England England Boxing, known until 2013 as the Amateur Boxing Association of England, is the leading Sports governing body, governing body of amateur boxing clubs in England. There are separate organisations for Scotland and Wales with boxing in North ...

, former name of England Boxing * American Bandy Association *

American Bicycle Association The American Bicycle Association (ABA) was a US-based BMX racing governing body in Gilbert, Arizona. In 2011, the ABA merged with the former National Bicycle League and became the present-day USA BMX: The American Bicycle Association. The ABA wa ...

* American Bridge Association

Trade and professional bodies

American Bankers Association The American Bankers Association (ABA) is an American trade association for the U.S. banking industry, founded in 1875. They lobby for banks of all sizes and bank charters, including community banks, regional and money center banks, Federal s ...

* American Bandmasters Association *

American Bar Association The American Bar Association (ABA) is a voluntary association, voluntary bar association of lawyers and law students in the United States; national in scope, it is not specific to any single jurisdiction. Founded in 1878, the ABA's stated acti ...

, an association of lawyers * American Beverage Association, beverage industry lobby organization * American Booksellers Association * American Bus Association * Antiquarian Booksellers Association, a trade body in the British Isles * Association of Black Anthropologists *

Australian Banking Association The Australian Banking Association (ABA), formerly the ''Australian Bankers' Association'', is the trade association for the Australian banking industry. The ABA was founded in 1985 and is based in Sydney, New South Wales. The ABA represents twe ...

* Australian Booksellers Association * American Bantam Association

Other businesses and organizations

* ABA Chemicals, a Chinese chemical manufacturing company * ABA Games, a Japanese creator of freeware games * Alabama Baptist Association, United States * American Baptist Association, a Baptist denomination predominant in the American South * American Bell Association International *

American Birding Association The American Birding Association (ABA) is a nonprofit organization, founded in 1969, dedicated to recreational birdwatching, birding in Canada and the United States. It has been called "the standard-bearer for serious birding in North America." ...

* Australian Blue Asbestos, mining, bagging and blue asbestos distribution company * Australian Breastfeeding Association

Finance

ABA routing transit number In the United States, an ABA routing transit number (ABA RTN) is a nine-digit code printed on the bottom of cheque, checks to identify the financial institution on which it was drawn. The American Bankers Association (ABA) developed the system i ...

, a bank code used in the United States * Accredited Business Accountant, American accountancy credential

Music

* ''

Altbachisches Archiv , also (ABA, old-Bachian archive), is a collection of 17th-century vocal music, most of which was written by members of the Bach family. History Johann Ambrosius Bach, Johann Sebastian Bach, Johann Sebastian's father, supposedly started to collec ...

'', collection of 17th-century music, most written by the Bach family * A-B-A, the

ternary form Ternary form, sometimes called song form, is a three-part musical form consisting of an opening section (A), a following section (B) and then a repetition of the first section (A). It is usually schematized as A–B–A. Prominent examples inclu ...

in music

Transport

* ABA, the National Rail code for Aberdare railway station, Wales, UK

Other uses

* ABA problem, a multithreading computing anomaly * A.B.A, a character in the fighting game series ''Guilty Gear'' * Abé language of Ivory Coast *

Abscisic acid Abscisic acid (ABA or abscisin II) is a plant hormone. ABA functions in many plant developmental processes, including seed and bud dormancy, the control of organ size and stomatal closure. It is especially important for plants in the response to ...

, a plant hormone *

Applied behavior analysis Applied behavior analysis (ABA), also referred to as behavioral engineering, is a behavior modification system based on the principles of respondent and operant conditioning. ABA is the applied form of behavior analysis; the other two are: ...

, a controversial programme most commonly employed to modify the behaviour of children with autism * Architectural Barriers Act of 1968, act of the US Congress