OIPA
| Acronym | Definition |
|---|---|
| OIPA | Oklahoma Independent Petroleum Association |
| OIPA | Organizzazione Internazionale Protezione Animali (Italian: International Organization for the Protection of Animals) |
| OIPA | Office of Intellectual Property Administration |
| OIPA | Oklahoma Independent Producers Association |
| OIPA | Office of Information and Public Affairs |
| OIPA | Olympic Insignia Protection Act (Australia) |