PSNS
| Acronym | Definition |
|---|---|
| PSNS | Pretreatment Standards for New Sources (US EPA) |
| PSNS | Puget Sound Naval Shipyard |
| PSNS | Parasympathetic Nervous System |
| PSNS | Pravá Slovenská Národná Strana (Real Slovak National Party, Slovakia) |
| PSNS | Parti Syrien National Social (French: Syrian National Socialist Party) |
| PSNS | Perthshire Society of Natural Science (UK) |
| PSNS | Pulsed Spallation Neutron Source (physics) |