PNSS
| Acronym | Definition |
|---|---|
| PNSS | Pregnancy Nutrition Surveillance System |
| PNSS | Parti National Social Syrien (French: Syrian Social National Party) |
| PNSS | Podstawa Naliczania Stypendium Socjalnego (Polish: Basis for Calculating Social Scholarship; academic scholarships) |
| PNSS | Plain Normal Saline Solution |
| PNSS | Permanent National Security State |
| PNSS | Pilot Night Sight System |