CHAA
| Acronym | Definition |
|---|---|
| CHAA | Corporate Health Achievement Award |
| CHAA | Coalition for a Healthy and Active America |
| CHAA | Canadian Harvard Aircraft Association |
| CHAA | Christian Homeschool Athletic Association (Texas) |
| CHAA | Canadian Historical Aircraft Association (also seen as CH2A; Windsor, Ontario, Canada) |
| CHAA | Culinary Historians of Ann Arbor (est. 1983; Michigan) |