| Abbreviation | Definition |
|---|---|
| OIT | Office of Information Technology |
| OITD | Office of International Training and Development (Clark Atlanta University) |
| OIU | Omdurman Islamic University |
| OIV | Office of International Visitors |
| OJ | Order Of Jesuits |
| OJA | Orlando Junior Academy |
| OKU | Olin Kroch Uris Libraries (Cornell) |
| OKU | Osaka Kyoiku University |
| OKU | University of OKlahoma |
| OKWU | Oklahoma Wesleyan University |
| OLC | On-Line Classroom |
| OLC | online course |
| OLC | University of Otago Language Centre |
| OLE | Office of Legal Education |
| OLE | Optimal Learning Environment |
| OLEI | Oak League Education Institute |
| OLEP | Office of Law Enforcement Programs |
| OLEP | Office of Legal Eduication Programs |
| OLES | On-Line Extension Services |
| OLFU | Our Lady of Fatima University |