NPSS
| Acronym | Definition |
|---|---|
| NPSS | National Public Safety Solutions (various locations) |
| NPSS | Numerical Propulsion System Simulation (NASA) |
| NPSS | Native Plant Society of Saskatchewan |
| NPSS | Nuclear and Plasma Science Society (IEEE) |
| NPSS | National Pension Saving Scheme (UK) |
| NPSS | NASA Packet Switching System |
| NPSS | Northeast Product Safety Society, Inc. |
| NPSS | New Product Six Sigma |
| NPSS | North Pacific Ship Supply (Alaska) |
| NPSS | North Park Secondary School (Brampton, Ontario) |
| NPSS | Norwegian Police Security Service |