| 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) |