| Acronym | Definition |
|---|
| PRAO➣Professional Responsibility Advisory Office (US DOJ) |
| PRAO➣Physical Review A Online (journal; American Physical Society) |
| PRAO➣Puschino Radio Astronomy Observatory (Russia) |
| PRAO➣Personnel Research Activity Office (Navy) |
| PRAO➣Partial Reversible Airway Obstruction |