PRAO
| 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 |