PNSA
| Acronym | Definition |
|---|---|
| PNSA | Pacific Northwest Ski Association |
| PNSA | PostNuke Security Advisory |
| PNSA | Pacific Northwest Shrine Association |
| PNSA | Pacific Northwest Sleep Association |
| PNSA | Parasympathetic Nervous System Activity (medicine) |
| PNSA | Seaman Apprentice, Personnelman Striker (Naval Rating) |