| Acronym | Definition |
|---|
| CASA | Civil Aviation Safety Authority (Australia) |
| CASA | Court Appointed Special Advocate |
| CASA | Center on Addiction and Substance Abuse |
| CASA | Court Appointed Special Advocates |
| CASA | Centre for Advanced Spatial Analysis |
| CaSA | Central and South America |
| CASA | Clean Air Strategic Alliance |
| CASA | Center for Astrophysics and Space Astronomy |
| CASA | Centre Against Sexual Assault |
| CASA | National Center on Addiction and Substance Abuse at Columbia University |
| CASA | Castillo de San Marcos National Monument (US National Park Service) |
| CASA | Computational Auditory Scene Analysis |
| CASA | Construcciones Aeronauticas SA |
| CASA | Contemporary A Cappella Society of America |
| CASA | Center for Arabic Study Abroad |
| CASA | Centro de Acción Social (Guatemala political party) |
| CASA | Computer Assisted Sperm Analysis |
| CASA | Canadian Alliance of Student Associations |
| CASA | Centres Against Sexual Assault (Australia) |
| CASA | Center Against Sexual Assault |
| CASA | Canadian Agricultural Safety Association (Winnipeg, MB, Canada) |
| CASA | Crédit Agricole SA |
| CASA | Community Action Stops Abuse |
| CASA | Computer and Automated Systems Association (SME) |
| CASA | Chicago Air Shower Array |
| CASA | Churches Auxiliary for Social Action (New Delhi, India) |
| CASA | Civilian Aide to the Secretary of the Army |
| CASA | Canadian Association of School Administrators |
| CASA | Citizens Against Sexual Assault |
| CASA | Center Against Spouse Abuse (Florida) |
| CASA | Citizens' Alliance for Saving the Atmosphere and the Earth (Japan) |
| CASA | Casablanca Stock Exchange |
| CASA | Corporacion de Abastecimiento y Servicios Agricolas (Spanish, Venezuela) |
| CASA | Cost Analysis Strategy Assessment |
| CASA | Camano Animal Shelter Association (Camano Island, WA) |
| CASA | Child and Adolescent Services Association (Canada) |
| CASA | Center for Advising and Student Achievement |
| CASA | Caring And Sharing Association (Ireland) |
| CASA | Community Alternative Systems Agency (New York) |
| CASA | Chinese-American Students Association |
| CASA | Capital Area Soccer Association (Harrisburg, Pennsylvania) |
| CASA | Computer Assisted Semen Analyzers |
| CASA | Cuban-American Student Association |
| CASA | Commerce and Administration Students Association |
| CASA | Center for the Adolescents of San Miguel de Allende (Mexico) |
| CASA | Current Account Savings Account (banking) |
| CASA | Colorado Actors and Screenwriters Assembly |
| CASA | Centre for Analysis, Scientific computing and Applications (Eindhoven The Netherlands) |
| CASA | Colombian American Service Association, Inc. (established in 1994 to assist and support the Hispanic community) |
| CASA | Canadian Amateur Swimming Association |
| CASA | Cruising Association of South Africa |
| CASA | Chinese Art Society of America |
| CASA | Computer Algebra System for Algebraic Geometry |
| CASA | Cercle Aquariophile de Sainte-Adresse (French: Sainte-Adresse Aquarist Circle; Sainte-Adresse, France) |
| CASA | Cisco Appliance and Services Architecture |
| CASA | Computer-Aided Systems Analysis |
| CASA | Computer Are Social Actors |
| CASA | Criticality-Associated Similarity Analysis |
| CASA | Colombo-American Student Alliance (University of Houston) |
| CASA | Cultural Awareness and Spanish-skills Aid |
| CASA | Construcciones Aeronauticas Sociedad Aónima (Spanish aerospace company and member of Airbus Industrie) |
| CASA | Christians Against Sinful Actions |
| CASA | Caffeine-Assisted Self-Awareness |
| CASA | Canadian Advertising and Sales Association |
| CASA | Children & Adolescent Services Association |
| CASA | Computer Aided/Assisted Sperm Analysis |
| CASA | Compact Annular-Slot Antenna |
| CASA | Coordinator for Army Security Assistance |
| CASA | Computer Aided Situation Awareness |