| Acronym | Definition |
|---|
| IPRB➣Illinois Petroleum Resources Board (Mount Vernon, IL) |
| IPRB➣Intellectual Property Rights Branch (police; Singapore) |
| IPRB➣Infrastructure Project Review Board |
| IPRB➣Intellectual Property Review Board |
| IPRB➣Inter-Allied Post-War Requirements Bureau (US Navy) |
| IPRB➣Interrupt Pending Register B (computing) |
| IPRB➣Isolated Perfused Rat Brain |