ASA as an abbreviation or initialism may stand for:

Organizations

• Acoustical Society of America
• Advertising Standards Authority (disambiguation)
• African Studies Association
• Aid to Southeast Asia, a non-governmental organization
• Airline Superintendents Association of Trinidad & Tobago
• Air Services Australia, air traffic management and related services provider for Australia
• Albany Students' Association, at Massey University's Albany Campus in Auckland, New Zealand
• Alpha Sigma Alpha ( ), U.S. national sorority
• Amateur Softball Association, national governing body of Softball
• American Sailing Association
• American Scientific Affiliation, an organization of Christians in science
• American Seniors Association
• American Society for Aesthetics
• American Society of Agronomy
• American Society of Anesthesiologists
• American Society of Appraisers
• American Sociological Association
• American Staffing Association
• American Standards Association, former name of the American National Standards Institute
• American Statistical Association
• American Student Assistance
• American Studies Association
• American Stroke Association, or American Heart Association
• American Synesthesia Association
• Americans for Safe Access, marijuana law reform group
• Associate of the Society of Actuaries
• Association of Southeast Asia
• Astronomical Society of Australia, the professional society of astronomers in Australia
• Australian Society of Authors, the peak professional association for Australian literary creators
• Australian String Academy, for string players
• Austrian Service Abroad, provider of alternative Austrian national service
• Austrian Space Agency, member of the ESA
• Autism Society of America
• All Sciences Association
• United States Army Security Agency, the U.S. Army's electronic intelligence arm

Business

• Aeropuertos y Servicios Auxiliares, Mexican airport operator
• Air Services Agreement
• The International Civil Aviation Organization's code for Alaska Airlines
• Allmennaksjeselskap or ASA, the designation for a Norwegian public limited company
• ASA (automobile), Italian marque of automobiles
• ASA Aluminium Body, Argentinian manufacturer of replicas of sports cars
• Associate of the Society of Actuaries
• Association for Social Advancement, microfinance institution, Bangladesh
• Atlantic Southeast Airlines, based in Atlanta, Georgia, U.S. Now merged into ExpressJet.
• Anglo-Saxon accounting, accounting methodology used in English-speaking countries - see Anglo-Saxon economy

Sport

• Adult Soccer Association, in the U.S.
• Agremia o Sportiva Arapiraquense, Brazilian soccer club
• Amateur Softball Association, in the U.S.
• American Speed Association, motorsports sanctioning body
• Amateur Swimming Association, oversees swimming in England
• Atl tico Sport Avia o, Angolan soccer club
• Australian Soccer Association, former name of Football Federation Australia
• The IOC designated country code for American Samoa

Science and medicine

• Accessible surface area of a biomolecule, accessible to a solvent
• Acetylsalicylic acid, the chemical name for the analgesic trademarked as Aspirin
• Adaptive simulated annealing, optimization algorithm
• Advanced surface ablation, refractive eye surgery
• Argininosuccinic aciduria, a disorder of the urea cycle
• ASA physical status classification system, rating of patients undergoing anesthesia
• Auditory scene analysis, process of organizing sound
• Acrylonitrile Styrene Acrylate, a type of plastic

Schools

• Alexander-Smith Academy

Other

• Cisco Adaptive Security Appliance, a network firewall
• Adaptive Security Algorithm is a proprietary algorithm that run on Cisco Firewalls (ASA/PIX)
• Allied States of America, a fictional American nation in the television show Jericho
• Angle-Side-Angle, a shortcut for showing either congruency or similarity between two triangles
• Anti-Soviet agitation, a criminal offense in the Soviet Union
• ASA carriage control characters, a system used for controlling mainframe line printers
• A film speed rating system defined by the former American Standards Association

See also

• Asa (disambiguation)

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