ORIS
| Acronym | Definition |
|---|---|
| ORIS | Office of Research Information Systems (various universities) |
| ORIS | Operating Room Information System |
| ORIS | Office of Regulatory Information Systems |
| ORIS | Ord River Irrigation Scheme (Australia) |
| ORIS | Office of Research and Information Services (Canada) |
| ORIS | Operational Range Inventory Sustainment |