| Acronym | Definition |
|---|
| OCCS | Oracle Configuration Control Script |
| OCCS | Opencast Coal Site (UK) |
| OCCS | Office of Computing and Communications Services (Norfolk, Va) |
| OCCS | Orange County Computer Society (Orange County, CA) |
| OCCS | Oberlin College Computer Science (Ohio) |
| OCCS | Oklahoma Child Care Services (Oklahoma Department of Human Services) |
| OCCS | Optical Cross Connect System (Alcatel) |
| OCCS | Overall Construction Classification System |
| OCCS | OmniClass Construction Classification System |
| OCCS | Open Collaboration Client Solution (IBM) |
| OCCS | Oracle Customer Choice Suite (software) |
| OCCS | Oswego Community Christian School (New York; est. 1979) |
| OCCS | Orange County Christian School (Anaheim, CA) |
| OCCS | Ohio Camera Collectors Society (Columbus, OH) |
| OCCS | Object-Centered Coordinate System |
| OCCS | Ordnance Chemical Center and School |
| OCCS | Observer Controller Communication System |