| Acronym | Definition |
|---|
| NPH | Northwestern Publishing House |
| NPH | Neil Patrick Harris (actor) |
| NPH | Normal Pressure Hydrocephalus (Hakim's Disease) |
| NPH | National Planning Holdings (Jackson National Life Insurance Company) |
| NPH | Neutral Protamine Hagedorn |
| NPH | Nazarene Publishing House |
| NPH | Non Parsed Header |
| NPH | New Products Highlights |
| NPH | Nuestros Pequeños Hermanos (Spanish: Our Little Brothers and Sisters) |
| NPH | Non-Parsed Header (computer programming) |
| NPH | National Pediatric Hospital (Cambodia) |
| NPH | Natural Phenomena Hazard |
| NPH | Normal Paraffin Hydrocarbon |
| NPH | New Product Hold |
| NPH | Nephronopthesis |
| NPH | Number of Stations Calculating Hypocentral Location (US Geological Survey; used in earthquake location) |