PNH
| Acronym | Definition |
|---|---|
| PNH | Paroxysmal Nocturnal Hemoglobinuria |
| PNH | Parelli Natural Horsemanship |
| PNH | Peace and Harmony (European gaming guild) |
| PNH | Phnom Penh, Cambodia - Pochentong (Airport Code) |
| PNH | Peripheral Nerve Hyperexcitability (neurology) |
| PNH | Pan Head |
| PNH | Province of Noord-Holland (Netherlands) |