| 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) |