ROSO
| Acronym | Definition |
|---|---|
| ROSO | Return of Service Obligation (Australia) |
| ROSO | Recherche Opérationnelle Sud Ouest (French: South West Operational Research; Switzerland) |
| ROSO | Royal Oman Symphony Orchestra (est. 1987) |
| ROSO | Removal of Silicone Oil (ophthalmology) |