ABA may refer to:

Aviation

• AB Aerotransport, a former Scandinavian airline
• ABA, the IATA airport code for Abakan Airport, in Russia

Broadcasting

• Alabama Broadcasters Association
• Australian Broadcasting Authority
• Asahi Broadcasting Aomori, a television station in Aomori Prefecture, Japan

Computing

• The ABA problem, a multithreading computing anomaly
• ABA Games, a Japanese creator of freeware games
• A.B.A, a character in the fighting game series Guilty Gear

Education

• Acad mie des Beaux-Arts (Kinshasa)
• Alameda Ballet Academy, the school of the Alameda Civic Ballet
• American British Academy, an international IB World School in Muscat, Oman

Finance and banking

• American Bankers Association
  • ABA transit number issued by the American Bankers Association, also known as the routing transit number
• Advanced Bank of Asia, a Cambodian commercial bank
• Accredited Business Accountant, an accounting credential granted by the Accreditation Council for Accountancy and Taxation in the United States

Non-sport associations

• American Bandmasters Association
• American Baptist Association
• American Bar Association
• American Beverage Association, a trade organization that represents the beverage industry in the United States.
• American Birding Association
• American Booksellers Association
• American Bus Association
• Antiquarian Booksellers Association, a trade body in the British Isles for dealers in antiquarian and rare books, and allied materials
• Australian Breastfeeding Association

Sports leagues and associations

• Adriatic Basketball Association, the organizer of Liga ABA in the former Yugoslavia, also with current participation from the Czech Republic and Israel
• Amateur Boxing Association of England
• American Bandy Association, the national bandy association of the United States
• American Basketball Association 1967 1976 (defunct)
• American Basketball Association (2000 present), a men's basketball minor league in the United States
• American Bicycle Association
• American Bridge Association
• Australian Basketball Association, the second-tiered semi-professional men's and women's basketball minor leagues in Australia

Other uses

• Abscisic acid, a plant hormone
• Aberdare railway station (United Kingdom)
• Alameda Ballet Academy, a ballet school in Alameda, California, United States
• Applied behavior analysis, a technique used to modify behavior, frequently used to treat autism
• Architectural Barriers Act of 1968
• Association for Behavior Analysis, also known as Association for Behavior Analysis International, a nonprofit organization supporting the science of behavior analysis and its development.
• A-B-A, the ternary form in music
• Australian Blue Asbestos, the centre of a major asbestos compensation claim under the auspices of the Dutch-owned James Hardie Industries

See also

• Aba (disambiguation)
• Abas (disambiguation)
• Abba (disambiguation)

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