| Acronym | Definition |
|---|
| OCSC | Office of the Civil Service Commission (Thailand) |
| OCSC | Office of Citizen Services and Communications (US GSA) |
| OCSC | Office of the Civil Service Commissioners (UK government) |
| OCSC | Olympic Circle Sailing Club |
| OCSC | Ohio Community Service Council |
| OCSC | Office of the Correctional Services Commissioner (Australia) |
| OCSC | Orange County Social Club |
| OCSC | Oakland County Sportsmen's Club (Michigan) |
| OCSC | Officers and Civilians Spouses' Club |
| OCSC | Ottawa Community Support Coalition (Ottawa, Ontario, Canada) |
| OCSC | Optoelectronic Computing Systems Center (Colorado State University Electrical Engineering Department NSF Research Center) |
| OCSC | Oregon Community Swim Club |
| OCSC | Onassis Cardiac Surgery Center |
| OCSC | Outer Circle Ski Club |
| OCSC | Online Customer Support Center |
| OCSC | Orange County Swim Conference |
| OCSC | ODPHP Communication Support Center |
| OCSC | Ottawa-Carleton Safety Council (Ottawa, Ontario, Canada) |
| OCSC | Old Chatham Sheepherding Company |
| OCSC | Oxford Commission on Sustainable Consumption (UK) |
| OCSC | Organização Contábil Souza Cardoso |
| OCSC | Oracle Complex Systems Corporation |
| OCSC | Owen County Security Center |
| OCSC | Optoelectronics Computing Systems Center |
| OCSC | Old Chestnut Song Circle |
| OCSC | Office Central pour la Saisie et la Confiscation |
| OCSC | Ostfriesischer Counter-Strike Clan |
| OCSC | Organisme de Coordination des Services Communautaires |
| OCSC | Old Caterhamians Sports Club |
| OCSC | Orange County Sterling Council |
| OCSC | Oklahoma Catholic Student Conference (annual) |
| OCSC | Off Campus Student Committee |
| OCSC | Owens-Corning Supply & Contracting |
| OCSC | Office of Computing and Statistical Consulting |