| Acronym | Definition |
|---|
| NPSP | Norwood Payneham and St. Peters (Australia) |
| NPSP | New Parent Support Program |
| NPSP | Net Positive Suction Pressure (physics) |
| NPSP | National Polio Surveillance Project (India) |
| NPSP | Net Positive Static Pressure (US NASA) |
| NPSP | National Pharmaceutical Stockpile Program (US CDC) |
| NPSP | New Park Street Pulpit (religious text) |
| NPSP | Native Plant Stewardship Program (Washington Native Plant Society) |
| NPSP | Non-Point Sources of Pollution |
| NPSP | Non-Point Source Program (US EPA; West Virginia) |
| NPSP | Nonparametric Statistical Package |