| Acronym | Definition |
|---|
| OCGC➣Office of Commonwealth Games Coordination (Australia) |
| OCGC➣Ottawa Carleton Geoscience Centre (est. 1982; Canada) |
| OCGC➣Olympia Country and Golf Club (Olympia, WA) |
| OCGC➣Orange County Guitar Circle (Costa Mesa, CA) |
| OCGC➣Ontario Centre for Genomic Computing (Canada) |
| OCGC➣Osteoclast-Like Giant Cells (oncology) |
| OCGC➣Ontario College Graduate Certificate (Canada) |