OSSG
| Acronym | Definition |
|---|---|
| OSSG | Obesity Surgery Support Group |
| OSSG | Office of the Spokesman for the Secretary General (UN) |
| OSSG | Open Source Specialist Group (UK) |
| OSSG | Operations and Sustainment Systems Group (replaces SSG and SSG/BISA office symbols at Gunter AFB, AL) |
| OSSG | Open Systems Software Group |
| OSSG | Open Software Systems Group (Defence and Evaluation Research Agency; UK) |