ASA as an abbreviation or initialism may refer to:

Biology and medicine

Accessible surface area The accessible surface area (ASA) or solvent-accessible surface area (SASA) is the surface area of a biomolecule that is accessible to a solvent. Measurement of ASA is usually described in units of square angstroms (a standard unit of measurement ...

of a biomolecule, accessible to a solvent * Acetylsalicylic acid, aspirin * Advanced surface ablation, refractive eye surgery *

Anterior spinal artery In human anatomy, the anterior spinal artery is the artery that supplies the anterior portion of the spinal cord. It arises from branches of the vertebral arteries and courses along the anterior aspect of the spinal cord. It is reinforced by sev ...

, the blood vessel which supplies the anterior portion of the spinal cord * Antisperm antibodies, antibodies against sperm antigens * Argininosuccinic aciduria, a disorder of the urea cycle * ASA physical status classification system, rating of patients undergoing anesthesia

Education and research

African Studies Association of the United Kingdom The African Studies Association of the United Kingdom (ASAUK) formed in 1963 "to advance African studies, particularly in the United Kingdom, by providing facilities for the interchange of information and ideas and the co-ordination of activities ...

African Studies Association The African Studies Association (ASA) is a US-based association of scholars, students, practitioners, and institutions with an interest in the continent of Africa. Founded in 1957, the ASA is the leading organization of African Studies in North ...

* Alandica Shipping Academy, Åland Islands, Finland * Albany Students' Association, at Massey University, Auckland, New Zealand * Alexander-Smith Academy, in Houston, Texas *

Alpha Sigma Alpha Alpha Sigma Alpha () is a United States National Panhellenic Fraternities and sororities in North America, sorority founded on November 15, 1901, at the Virginia State Female Normal School (later known as Longwood College and now known as Longwood U ...

, U.S. national sorority * American Society for Aesthetics, philosophical organization * American Student Assistance, national non-profit organization *

American Studies Association The American Studies Association (ASA) is a scholarly organization founded in 1951. It is the oldest scholarly organization devoted to the interdisciplinary study of U.S. culture and history. The ASA works to promote meaningful dialogue about t ...

* Arizona School for the Arts *

Armenian Sisters Academy The Armenian Sisters Academy (ASA; hy, Հայ քույրերի վարժարան) is a Pre-K through eighth grade institution located in the Philadelphia, Pennsylvania suburb of Upper Merion Township, Pennsylvania, with a Radnor postal address ...

Association of Social Anthropologists The Association of Social Anthropologists of the UK and Commonwealth is a learned society in the United Kingdom dedicated to promoting the academic discipline of social anthropology. It is a member of the Academy of Social Sciences The Academy o ...

* Astronomical Society of Australia * Austrian Studies Association

Organizations

Acoustical Society of America The Acoustical Society of America (ASA) is an international scientific society founded in 1929 dedicated to generating, disseminating and promoting the knowledge of acoustics and its practical applications. The Society is primarily a voluntary org ...

, international scientific society *

Advertising Standards Authority (disambiguation) Advertising Standards Authority may refer to: * Advertising Standards Bureau (Australia) * Advertising Standards Authority for Ireland * Advertising Standards Authority (New Zealand) *Advertising Standards Authority (South Africa) *Advertising Stan ...

, advertising regulators in several countries *

Aid to Southeast Asia Aid to Southeast Asia (ASA) is a humanitarian organization, providing help for the countries of Southeast Asia (mainly, Vietnam Vietnam or Viet Nam ( vi, Việt Nam, ), officially the Socialist Republic of Vietnam,., group="n" is a country ...

, a non-governmental organization *

American Scientific Affiliation The American Scientific Affiliation (ASA) is a Christian religious organization of scientists and people in science-related disciplines. The stated purpose is "to investigate any area relating Christian faith and science." The organization publi ...

, an organization of Christians in science *

American Society of Agronomy The American Society of Agronomy (ASA) is a scientific and professional society of agronomists and scientists of related disciplines, principally in the United States but with many non-U.S. members as well. About It was founded December 13, ...

American Society of Anesthesiologists The American Society of Anesthesiologists (ASA) is an educational, research and scientific association of physicians organized to raise the standards of the medical practice of anesthesiology and to improve patient care. As of 2021, the organiza ...

American Society of Appraisers The American Society of Appraisers (ASA) is an American nonprofit organization which serves as a professional affiliation of appraisers of all disciplines. The organization is the largest multi-discipline, voluntary membership, trade associatio ...

American Sociological Association The American Sociological Association (ASA) is a non-profit organization dedicated to advancing the discipline and profession of sociology. Founded in December 1905 as the American Sociological Society at Johns Hopkins University by a group of fif ...

American Staffing Association The American Staffing Association (ASA) is the trade association representing the American staffing industry. It is headquartered in Alexandria, Virginia. History The American Staffing Association began in 1966 as the Institute of Temporary Se ...

American Standards Association The American National Standards Institute (ANSI ) is a private non-profit organization that oversees the development of voluntary consensus standards for products, services, processes, systems, and personnel in the United States. The organ ...

, a former name of the American National Standards Institute *

American Statistical Association The American Statistical Association (ASA) is the main professional organization for statisticians and related professionals in the United States. It was founded in Boston, Massachusetts on November 27, 1839, and is the second oldest continuous ...

* American Synesthesia Association * Americans for Safe Access, marijuana law reform group * Association for Social Advancement, microfinance institution, Bangladesh * Association for the Study of Abortion *

Association of Scouts of Azerbaijan The Association of Scouts of Azerbaijan ( az, Azərbaycan Skautlar Assosiasiyası), (ASA) the national Scouting organization of Azerbaijan, was founded in 1997, and became the 150th member of the World Organization of the Scout Movement on 20 Au ...

* Association of Southeast Asia * Australian Society of Authors *

Australian Space Agency The Australian Space Agency is an agency under the Australian Government responsible for the development of Australia's commercial space industry, coordinating domestic activities, identifying opportunities and facilitating international spac ...

Austrian Service Abroad The Austrian Service Abroad is a non-profit organization founded by Andreas Hörtnagl, Andreas Maislinger and Michael Prochazka in 1998, which sends young Austrians to work in partner institutions worldwide serving Holocaust commemoration in for ...

Autism Society of America The Autism Society of America (ASA) was founded in 1965 by Bernard Rimland and Ivar Lovaas together with Ruth C. Sullivan and a small group of other parents of children with autism. Its original name was the National Society for Autistic Children ...

* United States Army Security Agency

Sports

* Agremiação Sportiva Arapiraquense, Brazilian soccer club *

Alliance Sport Alsace The Alliance Sport Alsace, simply known as ASA, is a French professional basketball club based in Souffelweyersheim and Gries. Founded in 2021, the team plays in the LNB Pro B. History The club was formed in 2021 by the merger of five clubs: B ...

, French basketball club * Amateur Softball Association, former name of the governing body now known as USA Softball * Amateur Swimming Association, former name of Swim England * American Sailing Association *

American Samoa American Samoa ( sm, Amerika Sāmoa, ; also ' or ') is an unincorporated territory of the United States located in the South Pacific Ocean, southeast of the island country of Samoa. Its location is centered on . It is east of the Internation ...

, IOC country code *

American Speed Association The American Speed Association (ASA) is a sanctioning body of motorsports in the United States formed in 1968. The Association was based in Pendleton, Indiana, and later in Daytona Beach, Florida. The ASA sanctioned asphalt and dirt tracks in t ...

, motorsports sanctioning body *

American Sportscasters Association The American Sportscasters Association (ASA) was founded in 1979 by broadcaster Dick London (Hanna) and associate attorney Harold Foner as a non-profit association to represent sportscasters by promoting and supporting the needs and interests of ...

* Arizona Soccer Association *

Athletics South Africa Athletics South Africa is the national governing body for the sport of athletics (including track and field, cross country, road running and racewalking) in South Africa, recognised by the IAAF, and also a member of Confederation of African Athl ...

, the national governing body for the sport of athletics in South Africa * Atlético Sport Aviação, Angolan multisports club * United States Adult Soccer Association

Transportation

* ASA (automobile), Italian marque of automobiles (Autocostruzioni Società per Azioni) * ASA Aluminium Body, Argentinian manufacturer of replicas of sports cars *

Aeropuertos y Servicios Auxiliares Aeropuertos y Servicios Auxiliares (ASA) is a Mexican Federal Government-owned corporation with its own equity capital and legal identity. It has its headquarters in Mexico City in Venustiano Carranza, Mexico City. It was set up in June 1965 to ov ...

, Mexican airport operator * African Safari Airways, airline company based in East Africa *

Air services agreement An air transport agreement (also sometimes called an air service agreement or ATA or ASA) is a bilateral agreement to allow international commercial air transport services between signatories. The bilateral system has its basis under the Chicago ...

, bilateral agreement to allow international commercial air transport services between signatories * Atlantic Southeast Airlines, in Atlanta, Georgia *

Airline Superintendents Association The Airline Superintendents Association is a trade union in Trinidad and Tobago with most of its members in the former airline of BWIA. See also * List of trade unions This is a list of trade unions and union federations by country. Interna ...

, of Trinidad & Tobago *

Airservices Australia Airservices Australia is an Australian Government owned corporation, responsible for providing safe, secure, efficient and environmentally responsible services to the aviation industry within the Australian Flight Information Region (FIR). S ...

, air traffic management and related services provider for Australia * The International Civil Aviation Organization's code for

Alaska Airlines Alaska Airlines is a major American airline headquartered in SeaTac, Washington, within the Seattle metropolitan area. It is the sixth largest airline in North America when measured by fleet size, scheduled passengers carried, and the nu ...

Other

* ASA, a measure of

film speed Film speed is the measure of a photographic film's sensitivity to light, determined by sensitometry and measured on various numerical scales, the most recent being the ISO system. A closely related ISO system is used to describe the relation ...

in photography, later replaced by the ISO standard *

Acrylonitrile styrene acrylate Acrylonitrile styrene acrylate (ASA), also called acrylic styrene acrylonitrile, is an amorphous thermoplastic developed as an alternative to acrylonitrile butadiene styrene (ABS), but with improved weather resistance, and is widely used in the a ...

, a plastic polymer *

Adaptive simulated annealing Adaptive simulated annealing (ASA) is a variant of simulated annealing (SA) algorithm in which the algorithm parameters that control temperature schedule and random step selection are automatically adjusted according to algorithm progress. This mak ...

, optimization algorithm *

Cisco ASA In computer networking, Cisco ASA 5500 Series Adaptive Security Appliances, or simply Cisco ASA, is Cisco's line of network security devices introduced in May 2005. It succeeded three existing lines of popular Cisco products: * Cisco PIX, which prov ...

(Adaptive Security Appliances) * Allied States of America, a fictional American nation in the television show ''Jericho'' *

Allmennaksjeselskap ''Aksjeselskap'' is the Norwegian term for a stock-based company. It is usually abbreviated AS, historically often written as A/S. An AS is always a limited company, i.e. the owners cannot be held liable for any debt beyond the stock capital ...

, the designation for a Norwegian public limited company *

Anti-Soviet agitation Anti-Soviet agitation and propaganda (ASA) (russian: антисове́тская агита́ция и пропага́нда (АСА)) was a criminal offence in the Soviet Union. To begin with the term was interchangeably used with counter-revol ...

, a criminal offense in the Soviet Union *

ASA carriage control characters ASA control characters are simple printing command characters used to control the movement of paper through line printers. These commands are presented as special characters in the first column of each text line to be printed, and affect how the pa ...

, a system used for controlling mainframe line printers * Assistant state's attorney, a title for attorneys working in the state's attorney's office in the United States *

As-salamu alaykum As-salamu alaykum ( ar, ٱلسَّلَامُ عَلَيْكُمْ, , ), also ''Salamun Alaykum'' is a greeting in Arabic that means 'Peace be upon you'. The (, meaning 'peace') has become a religious salutation for Muslims worldwide when gree ...

, a greeting in

Arabic Arabic (, ' ; , ' or ) is a Semitic language spoken primarily across the Arab world.Semitic languages: an international handbook / edited by Stefan Weninger; in collaboration with Geoffrey Khan, Michael P. Streck, Janet C. E.Watson; Walte ...

that means "peace be upon you" *

Auditory scene analysis In perception and psychophysics, auditory scene analysis (ASA) is a proposed model for the basis of auditory perception. This is understood as the process by which the human auditory system organizes sound into perceptually meaningful elements. T ...

, a proposed model for the basis of auditory perception