OCSG
| Acronym | Definition |
|---|---|
| OCSG | Oracle Communications Services Gatekeeper (software) |
| OCSG | Outer Continental Shelf-Gulf (Mexico) |
| OCSG | Open Canoe Sailing Group (UK) |
| OCSG | Oregon Cutting Systems Group (Blount, International, Inc.; Portland, Oregon) |
| OCSG | Ordine Costantiniano di San Giorgio (Italian: Constantinian Order of St. George) |
| OCSG | Open Computing Security Group |
| OCSG | Ohio Cost Savings Group |