| Acronym | Definition |
|---|
| NPHA | National Prison Hospice Association |
| NPHA | National Peer Helpers Association |
| NPHA | National Park Hospitality Association |
| NPHA | Non-Profit Housing Association (various locations) |
| NPHA | National Pharmacists Association |
| NPHA | National Pleasure Horse Association (Australia) |
| NPHA | National Private Hire Association (UK) |
| NPHA | National Primary Headteachers' Association (UK) |
| NPHA | Nevada Public Health Association |
| NPHA | Northeastern Pennsylvania Horsemen's Association (Dallas, PA) |
| NPHA | Norwegian Paint Horse Association |
| NPHA | Northern Pacific Halibut Act of 1982 |
| NPHA | Nebraska Public Health Association |
| NPHA | New Public Health Approach (Canada) |
| NPHA | National Public Health Association (Taiwan) |
| NPHA | National Police Horse Academy |
| NPHA | National Pesticide Hazard Assessment |
| NPHA | Northern Ponca Housing Authority (Nebraska) |
| NPHA | Nintendo Poser Haters of America |
| NPHA | Non-Profit Humanitarian Assistance |
| NPHA | New Paltz Healing Arts (New Paltz, NY) |