| Abbreviation | Definition |
|---|---|
| OUA | Office of University Advising |
| OUA | Ontario University Athletics |
| OUA | Open Universities Australia |
| OUAA | Oakland University Alumni Association |
| OUAA | Ohio University Advertising Association |
| OUAA | Oklahoma University Alumni Association |
| OUAA | Ontario University Athletic Association |
| OUAA | Osmania University Alumni Association |
| OUAC | Ontario Universities' Application Centre |
| OUAS | Oulu University of Applied Sciences |
| OUAS | Oxford University Air Squadron |
| OUAS | Oxford University Anthropological Society |
| OUAS | Oxford University Archaeological Society |
| OUAT | Orissa University of Agriculture and Technology |
| OUB | Oxford University Bank |
| OUBC | Oxford University Boat Club |
| OUBS | Oxford University Biochemical Society |
| OUBS | Oxford University Broadcasting Society |
| OUC | Office of University Communications |
| OUC | Office of University Controller |