| Acronym | Definition |
|---|
| ASA | American Standards Association (now ANSI) |
| ASA | Angle Side Angle (geometry) |
| ASA | Alcohol and Substance Abuse (various organizations) |
| ASA | Adult Substance Abuse (various organizations) |
| ASA | Amateur Softball Association |
| ASA | Adaptive Security Appliance (Cisco) |
| ASA | Automotive Service Association |
| ASA | Advertising Standards Authority (UK) |
| ASA | American Society on Aging |
| ASA | Amateur Swimming Association (UK) |
| ASA | Autism Society of America |
| ASA | Americans for Safe Access |
| ASA | Adaptive Server Anywhere |
| ASA | American Soybean Association |
| ASA | American Statistical Association |
| ASA | American Society of Appraisers |
| ASA | American Sailing Association |
| ASA | American Sociological Association |
| ASA | American Studies Association |
| ASA | American Speed Association (stock car racing sanctioning organization) |
| ASA | American Staffing Association |
| ASA | As Soon As |
| ASA | African Studies Association |
| ASA | Atlantic Southeast Airlines (wholly owned subsidiary of Delta Air Lines, Inc.) |
| ASA | Assistant Secretary of the Army |
| ASA | American Society of Anesthesiologists |
| ASA | Acoustical Society of America |
| ASA | Alaska Airlines (ICAO code) |
| ASA | American Supply Association |
| ASA | American Society of Agronomy |
| ASA | Adult Sexual Assault |
| ASA | Alexander-Smith Academy (Houston, TX) |
| ASA | American Subcontractors Association (Alexandria, VA) |
| ASA | American Stroke Association |
| ASA | American Scientific Affiliation |
| ASA | Acetylsalicylic Acid (aspirin) |
| ASA | American Sportfishing Association |
| ASA | Asian Students Association |
| ASA | American Student Assistance |
| ASA | After School Art (various locations) |
| ASA | After School Activity (various schools) |
| ASA | Advertising Standards Agency |
| ASA | Australian Society of Authors |
| ASA | Army Security Agency |
| ASA | Average Speed of Answer |
| ASA | Accredited Senior Appraiser |
| ASA | Aeropuertos y Servicios Auxiliares (México) |
| ASA | Applied Science Associates, Inc. |
| ASA | Aviation Supplies & Academics |
| ASA | Aminosalicylic Acid |
| ASA | Academic and Student Affairs (various schools) |
| ASA | Anti-Sperm Antibody |
| ASA | American Sleep Association (est. 2002) |
| ASA | Agent Systems and Applications |
| ASA | Association Suisse d'Assurances (Swiss Insurance Association) |
| ASA | Association of Social Anthropologists |
| ASA | Adaptive Sports Association (Durango, CO) |
| ASA | Average Sunday Attendance (churches) |
| ASA | Adaptive Simulated Annealing |
| ASA | Audi Side Assist |
| ASA | Automated Service Agents |
| ASA | anti Spam Agent |
| ASA | Automation Systems Architecture |
| ASA | American Standards Association |
| ASA | Advance Separated Absorbed System |
| ASA | anti Spam Alliance |
| ASA | Automated Support Assistant |
| ASA | Adaptive Security Appliance |
| ASA | Autocad Support Assistance |
| ASA | Advertising Standards Authority |
| ASA | Alice Sweet Alice |
| ASA | Australian Society of Archivists |
| ASA | Assistant System Administrator (various locations) |
| ASA | Air Stagnation Advisory |
| ASA | Advanced Signal Analysis (Siemens technology) |
| ASA | Airservices Australia |
| ASA | Association Sportive Automobile (French: Motor Sports Association) |
| ASA | American Society of Andrology |
| ASA | Adaptive Security Algorithm |
| ASA | Aid to Southeast Asia (est. 1989) |
| ASA | Australian Society of Anaesthetists |
| ASA | Auditory Scene Analysis (psychoacoustics) |
| ASA | Austrian Space Agency |
| ASA | Astronomical Society of Australia |
| ASA | Associate of the Society of Actuaries |
| ASA | Academic Study Associates |
| ASA | Assalamu Alaikum (Arabic: May Peace Be Upon You) |
| ASA | Archiv für Schweizerisches Abgaberecht |
| ASA | American Softball Association |
| ASA | Alpha Sigma Alpha |
| ASA | Adaptive Security Architecture (computing) |
| ASA | American Simmental Association |
| ASA | AIDS Services of Austin |
| ASA | Annual Service Agreement (various organizations) |
| ASA | African Students Association (various universities) |
| ASA | Armenian Student Association |
| ASA | Association for Social Advancement |
| ASA | Assistant State's Attorney |
| ASA | Advice Services Alliance (UK) |
| ASA | Association of Subscription Agents |
| ASA | Advanced Systems Automation Limited (Singapore) |
| ASA | Arizona Students Association |
| ASA | American Shipbuilding Association |
| ASA | Alberta Soccer Association |
| ASA | Australasian Sleep Association |
| ASA | Autocostruzioni Societa Per Azioni (Italian car company) |
| ASA | American Sugar Alliance |
| ASA | Arbeits- und Studienaufenthalte (German educational program) |
| ASA | Antarctic Support Associates (NSF USAP Support Contractor) |
| ASA | Aerospace States Association |
| ASA | Arizona School for the Arts (Phoenix, AZ) |
| ASA | Air Sovereignty Alert (US Air Force) |
| ASA | American Screenwriters Association |
| ASA | Association of Siamese Architects |
| ASA | Administrative Support Assistant |
| ASA | Automated Static Analysis (software vulnerability) |
| ASA | Association of Scouts of Azerbaijan (est. 1997) |
| ASA | Association Suisse de l'Arbitrage |
| ASA | Administrative Services Agreement (various organizations) |
| ASA | After School Alliance (various locations) |
| ASA | Ask an Astronomer (various locations) |
| ASA | Associazione Solidarietà AIDS |
| ASA | Atomic Sphere Approximation |
| ASA | ACCESS Systems America (various locations) |
| ASA | Anderson Student Association (University of California, Los Angeles) |
| ASA | Aspirin Sensitive Asthma |
| ASA | Automatic Spectrum Analyzer (US DoD) |
| ASA | Aggressive Skaters Association |
| ASA | Arizona Sign Association (trade association) |
| ASA | Automatic Slack Adjuster |
| ASA | Alexandria Sanitation Authority (Fairfax County, VA) |
| ASA | American Salvage Association (Arlington, VA) |
| ASA | Allocation Spécifique d'Attente (French; supplemental income) |
| ASA | Amherst Soccer Association (various locations) |
| ASA | Arab Student Association |
| ASA | American Sportscasters Association |
| ASA | Adoption Support Agency (UK) |
| ASA | Allele Specific Amplification |
| ASA | All Source Analysis |
| ASA | Accounting Students Association |
| ASA | American Shotcrete Association |
| ASA | Active Server Application (Microsoft) |
| ASA | Astronomical Society of the Atlantic |
| ASA | Asiantaeth Sicrhau Ansawdd (Welsh: Quality Assurance Agency; UK) |
| ASA | Air Source Adapter (paintball) |
| ASA | Advanced SCSI Architecture |
| ASA | Agency for Social Analyses (Sofia, Bulgaria) |
| ASA | Avantage Spécifique d'Ancienneté (French: Specific Advantages of Seniority) |
| ASA | American Sommelier Association |
| ASA | Australian Society of Agronomy |
| ASA | American Synesthesia Association |
| ASA | Associação Scholem Aleichem |
| ASA | Actuarial Sciences Associates |
| ASA | Allied States of America |
| ASA | active surface area |
| ASA | Astronomy Students Association (University of Texas) |
| ASA | Anti-Spam Agent (software) |
| ASA | American Subbuteo Association |
| ASA | Agremiação Sportiva Arapiraquense |
| ASA | Albany Students' Association |
| ASA | Applied Science and Analysis, Inc. |
| ASA | Autorisation Spéciale d'Absence (French: Special Leave of Absence) |
| ASA | Association of South-East Asia |
| ASA | Art Service Association |
| ASA | Alumni Scholars Association (various schools) |
| ASA | Advanced Standing Admission (various universities) |
| ASA | Application Server Administrator (various organizations) |
| ASA | Audio Service America (Albany, NY) |
| ASA | American Sniper Association |
| ASA | Adult Services & Aging |
| ASA | Academic Systems Algebra (educational software program) |
| ASA | Avicultural Society of America |
| ASA | Appalachia Studies Association (est. 1977) |
| ASA | Airline Services Agreement |
| ASA | Associazione Scientifica Amatoriale |
| ASA | Anti-Static Additive |
| ASA | Athlétique Sport Aixois (French athletics club; Aix-les-Bains, France; est. 1947) |
| ASA | Audiovox Specialized Applications, LLC |
| ASA | American Sports Analysts |
| ASA | Auditable Safety Analysis |
| ASA | Australian Standards Association |
| ASA | Association of Singapore Attractions |
| ASA | Accredited Safety Auditor |
| ASA | Australian Shareholders' Association Ltd |
| ASA | Army Signal Activity |
| ASA | Advanced Safety Audit |
| ASA | Always Safe Afloat (shipping) |
| ASA | Annular Slot Antenna |
| ASA | American Saluki Association (Michigan) |
| ASA | Albuquerque Soaring Association |
| ASA | Australian String Academy |
| ASA | American Scholastic Association |
| ASA | Advanced Systems Associates |
| ASA | After School Assignment |
| ASA | Algemeen Spaans Adviesbureau |
| ASA | Apsylis Services Automation (French software company) |
| ASA | Advanced System Architectures Ltd |
| ASA | Advanced Space Academy |
| ASA | Advanced Security Appliance (Cisco) |
| ASA | Aerosurface Servoamplifier (US NASA) |
| ASA | American Soccer Academy |
| ASA | Advanced System Architecture |
| ASA | Australian Shipowners Association Limited |
| ASA | Attraction-Selection-Attrition framework |
| ASA | Aviation Safety Advisory |
| ASA | Associazione Salentina Astrofili |
| ASA | Anti-Spam Alliance |
| ASA | Army School of Ammunition |
| ASA | American Schizophrenia Association |
| ASA | Army Space Agency |
| ASA | Alberta Sign Association (Canada) |
| ASA | Afrique Secours et Assistance (French) |
| ASA | Acrylonitrile-Styrene-Acrylate Terpolymer |
| ASA | Army Strategic Appraisal |
| ASA | Advanced System Avionics |
| ASA | Another Stupid Acronym |
| ASA | Anaerobe Society of the Americas, Inc. |
| ASA | Accelerated Safety Assessment |
| ASA | Automation Systems Architecture (CAN/Devicenet Communications Identifier) |
| ASA | Arizona Spirit Association |
| ASA | Additional Shift Allowance |
| ASA | Acoustical Scene Analysis (psychoacoustics) |
| ASA | Alternative Strategy Advisers LLC |
| ASA | Attribute SAS Authority |
| ASA | American Snowmobilers Association |
| ASA | Adaptive Sub-Channel Allocation |
| ASA | Application Systems Architecture |
| ASA | Auxiliary Solar Array |
| ASA | Alternate Splice Area (FOC) |
| ASA | Abaxial Spherical Aberration |
| ASA | Audubon Soccer Association (Pennsylvania) |
| ASA | Active Star Architecture |
| ASA | Aereopuertos y Servicios Auxiliares |
| ASA | Automated Student Administration |
| ASA | Abstract Source Alphabet |
| ASA | Accounting Schedule Activity |
| ASA | Another Silly Acronym |
| ASA | Air Surveillance Area (early warning) |
| ASA | Auxiliary Spectrum Analysis |
| ASA | Article Submit Auto (application) |
| ASA | Automatic Signal Analysis |
| ASA | Antenna Selector Assembly |
| ASA | Advanced Surveillance Aircraft |
| ASA | Automated SIOP Allocation |
| ASA | Administrative State Attribute |
| ASA | Area Software Analyst |
| ASA | Advanced Strike Aircraft |
| ASA | Analyst Support Architecture |
| ASA | Arbeitsgemeinschaft Südliches & Östliches Afrika eV (Munich, Germany) |
| ASA | Army System Architecture |
| ASA | Archery Shooters Association LLC |
| ASA | Alberta Snomobile Association |
| ASA | Aperture Switching Assembly |
| ASA | Asynchronous/Synchronous Analyzer (Digital Lightwave) |
| ASA | Author Supplied Abstract (abstracting & indexing) |
| ASA | Addressing System Agent |
| ASA | Agere Systems Australia (Australia) |
| ASA | Automatic Switchboard Attendant |
| ASA | Archive Society of Alberta (Canada) |
| ASA | Actual Sum Assured (insurance industry) |