PHAA
| Acronym | Definition |
|---|---|
| PHAA | Provincial Health Authorities of Alberta (employer bargaining group; Canada) |
| PHAA | Paint Horse Association of Australia (New South Wales, Australia) |
| PHAA | President to Hold Another Office Act (Paksitan) |
| PHAA | Pleasant Hill Adventist Academy (Pleasant Hill, California) |
| PHAA | Pritikin Health Association of Australia |
| PHAA | Pencader Heritage Area Association (Newark, Delaware) |
| PHAA | Airman Apprentice, Photographer's Mate Striker (Naval Rating) |