PrHA
| Acronym | Definition |
|---|---|
| PrHA | Preliminary Hazard Analysis |
| PrHA | Process Hazard Analysis (chemical process safety, industrial process safety) |
| PrHA | President of the Royal Hibernian Academy |
| PrHA | Parkland Regional Health Authority (Canada) |
| PrHA | Petersburg Redevelopment and Housing Authority (est. 1968; Petersburg, VA) |
| PrHA | People's Refreshment Houses Association (UK) |
| PrHA | Polish Reining Horse Association |