OSGC
| Acronym | Definition |
|---|---|
| OSGC | Ohio Space Grant Consortium |
| OSGC | Oklahoma Space Grant Consortium (Norman, OK) |
| OSGC | Oregon State Game Commission (now Oregon Department of Fish and Wildlife) |
| OSGC | Old School Grill Clan (Germany; barbecuing club) |
| OSGC | Oshawa Skeet and Gun Club (Oshawa, Ontario, Canada) |