| 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) |