| Acronym | Definition |
|---|
| CCOS➣Culture Collection of Switzerland (biorepository services) |
| CCOS➣Central California Ozone Study (California Air Resources Board) |
| CCOS➣Centro Culturale Odontostomatologico (Italian cultural center) |
| CCOS➣Computer-Controlled Optical Surfacing |
| CCOS➣Children's Clinical On-Site Services (various locations) |
| CCOS➣Close Combat Optic Sight |
| CCOS➣Churches Commission on Overseas Students (UK) |
| CCOS➣Coup de Consolidation |
| CCOS➣Central California Orchid Society (Fresno, CA) |
| CCOS➣Centre de Chirurgie Orthopédique et Sportive (French: Orthopedic Surgery and Sports Center) |