ASA

• ASA (automobile)
• ASA Aluminium Body
• ASA carriage control characters
• ASA physical status classification system
• Accessible surface area
• Acetylsalicylic acid
• Acoustical Society of America
• Acrylonitrile styrene acrylate
• Adaptive simulated annealing
• Adult Soccer Association
• Advanced surface ablation
• Advertising Standards Authority (disambiguation)
• Aeropuertos y Servicios Auxiliares
• African Safari Airways
• African Studies Association
• African Studies Association of the United Kingdom
• Agremiação Sportiva Arapiraquense
• Aid to Southeast Asia
• Air Services Agreement
• Airline Superintendents Association
• Airservices Australia
• Alaska Airlines
• Albany Students' Association
• Alexander-Smith Academy
• Allied States of America
• Allmennaksjeselskap
• Alpha Sigma Alpha
• Amateur Softball Association
• Amateur Swimming Association
• American Sailing Association
• American Samoa
• American Scientific Affiliation
• American Society for Aesthetics
• American Society of Agronomy
• American Society of Anesthesiologists
• American Society of Appraisers
• American Sociological Association
• American Speed Association
• American Sportscasters Association
• American Staffing Association
• American Standards Association
• American Statistical Association
• American Student Assistance
• American Studies Association
• American Synesthesia Association
• Americans for Safe Access
• Anterior spinal artery
• Anti-Soviet agitation
• Arabic
• Argininosuccinic aciduria
• Arizona School for the Arts
• Arizona Soccer Association
• Armenian Sisters Academy
• As-salamu alaykum
• Assistant State's Attorney
• Association for Social Advancement
• Association of Scouts of Azerbaijan
• Association of Social Anthropologists
• Association of Southeast Asia
• Astronomical Society of Australia
• Athletics South Africa
• Atlantic Southeast Airlines
• Atlético Sport Aviação
• Auditory scene analysis
• Australian Society of Authors
• Australian Space Agency
• Austrian Service Abroad
• Austrian Studies Association
• Autism Society of America
• Cisco ASA
• United States Army Security Agency