| ORIS | Occurrence Report Information System 
| Others |
| ORIS | Office for Research Information Systems
| Others |
| ORIS | Office of Research Information Services
| Others |
| ORIS | Office of Research Information Services (UW)
| Others |
| ORIS | Office of Research Information Systems
| Others |
| ORIS | Olympic Results and Information Services
| Others |
| ORIS | Online Retail Information Systems
| Others |
| ORIS | Online Retail Intelligence Solutions
| Others |
| ORIS | Operating Room Information System
| Others |
| ORIS | Ord River Irrigation Scheme
| Others |
| ORIS | Organization for Refugee and Immigrant Success
| Others |
| ORIS | Organization for Refugee Immigration Success
| Others |