| Term | Full Form | Category |
|---|---|---|
| CHAA | Camp Hale Alumni Association | Others |
| CHAA | Canadian Harvard Aircraft Association | Others |
| CHAA | Certified Healthcare Access Associate | Others |
| CHAA | Christian Homeschool Athletic Association | Others |
| CHAA | Community Health Analysis Area | Others |
| CHAA | Community Health for Asian Americans | Others |
| CHAA | Corporate Health Achievement Award | Others |