| Acronym | Definition |
|---|
| CCAS | Centre Communal d'Action Sociale (French: Center for Social Action; various locations) |
| CCAS | Center for Contemporary Arab Studies |
| CCAS | Cerebellar Cognitive Affective Syndrome (disorder) |
| CCAS | Caisse Centrale d'Activités Sociales (French: Central Fund for Social Activities) |
| CCAS | Cape Canaveral Air Station |
| CCAS | Charm City Art Space (Baltimore, MD) |
| CCAS | Council of Colleges of Arts and Sciences (est. 1965) |
| CCAS | College of Communication Arts and Sciences (Michigan State University) |
| CCAS | Consumer Codes Approval Scheme |
| CCAS | Convention for the Conservation of Antarctic Seals |
| CCAS | Cross Country Automotive Services |
| CCAS | Canadian Code of Advertising Standards |
| CCAS | Center for Contemporary Art, Sacramento (California; est. 1989) |
| CCAS | Caisse de Coordination aux Assurances Sociales (French: Coordination Fund for Social Insurance) |
| CCAS | Congressional Courier Acceptance Site |
| CCAS | Creative Circle Advertising Solutions (Providence, RI) |
| CCAS | Construction Contractor Appraisal Support System (US DoD) |
| CCAS | Conference for Critical Animal Studies |
| CCAS | Contingency Contract Administration Services (US DoD) |
| CCAS | Columbus Cash Accountability System (US DoD) |
| CCAS | Coalition for the Commercial Application of Superconductors |
| CCAS | Central Coast Astronomical Society |
| CCAS | Computing Centre of Russian Academy of Sciences (Moscow, Russia; also seen as CCRAS) |
| CCAS | Collier County Audubon Society |
| CCAS | Contribution-Based Compensation Appraisal System |
| CCAS | Caribbean Cytometry & Analytical Society (Barbados) |
| CCAS | Centralized Crew Alerting System |
| CCAS | Centrale Chrétienne de l'Alimentation et des Services (French: Central Christian and Food Services; Belgium) |
| CCAS | Containment Cooling Actuation Signal |
| CCAS | Catholic Community At Stanford (University) |
| CCAS | Cryogenic Carrier Attach System |
| CCAS | Centralized Contracting Acquisition System |
| CCAS | Certified Contracting Assistance Specialist (various organizations) |
| CCAS | Conditional Capacity Availability Statement (City of Jacksonville, FL) |
| CCAS | Cape Cod Air Station |
| CCAS | Cough/Cold/Allergy/Sinus (pharmaceuticals) |
| CCAS | Certified Commercial Apartment Specialist (National Apartment Marketing Institute, Inc.) |