HPAA
| Acronym | Definition |
|---|---|
| HPAA | Health Policy and Administration |
| HPAA | High-Power Air-To-Air Missile (Ace Combat game) |
| HPAA | 2-Hydroxyphosphonocarboxylic Acid |
| HPAA | Hypothalamo-Pituitary-Adrenal Axis (endocrine system) |
| HPAA | Hyde Park Art Association (Hyde Park, MA) |
| HPAA | Hypothalamic-Pituitary-Adrenocortical Axis |
| HPAA | Helicobacter Pylori Adhesin A (microbiology) |