| Acronym | Definition |
|---|
| CASC | Community Amateur Sports Club |
| CASC | Computer Algebra in Scientific Computing |
| CASC | Carl Albert State College |
| CASC | California Association of Student Councils |
| CASC | Cade ATP System Competition |
| CASC | Central Administrative Support Center |
| CASC | Canadian Automobile Sports Club |
| CASC | California Air and Space Center |
| CASC | Comité d'Action Sociale et Culturelle (French: Social and Cultural Action Committee) |
| CASC | Concentration and Solution Calculator |
| CASC | Cambodian Acid Survivors Charity |
| CASC | Communauté d'Agglomération Sarreguemines Confluences (French: Sarreguemines Confluence Agglomeration Community; Sarreguemines, France) |
| CASC | Combined Arms Staff Course |
| CASC | Catholic Agency for Social Concern |
| CASC | Coalition for Academic Supercomputer Centers |
| CASC | Commonwealth's Attorney Services Council |
| CASC | Chasing Amy Social Club |
| CASC | Communications Air Support Central |
| CASC | Calvert Administrative Services Company |
| CASC | Computing As Compression |
| CASC | Cascade Australian Shepherd Club |
| CASC | Commercial Activities Steering Committee |
| CASC | Central Air Safety Committee (Air Line Pilots Association) |
| CASC | Controlled Access Storage Cabinets Ltd (UK) |
| CASC | Customs Area Security Center |
| CASC | Capital Area Support Center |
| CASC | Catalog & Standardization Center |
| CASC | Corps Area Signal Center |
| CASC | Club d'Activités Subaquatiques de Craponne (French: Craponne Underwater Activities Club; Craponne, France) |
| CASC | Club Air Soft Chaville (French: Chaville Airsoft Club; Chaville, France) |
| CASC | Community Action Services Center |
| CASC | Cercle Aquariophile de Saint-Chamond (French: Saint-Chamond Aquarist Circle; Saint-Chamond, France) |
| CASC | California Association of School Counselors (Duarte, CA) |