| Acronym | Definition |
|---|
| ACHA➣American Collegiate Hockey Association |
| ACHA➣American College Health Association |
| ACHA➣American College of Healthcare Architects |
| ACHA➣Agency for Healthcare Administration (Florida) |
| ACHA➣Aboriginal Cultural Heritage Act (Australia) |
| ACHA➣Association for Communal Harmony in Asia |
| ACHA➣Applied and Computational Harmonic Analysis (mathematical journal) |
| ACHA➣American Catholic Historical Association (Washington, DC) |
| ACHA➣Air-Conduction Hearing Aid (device) |
| ACHA➣Allegheny County Housing Authority (Pittsburgh, PA) |
| ACHA➣American College of Hospital Administrators |
| ACHA➣African Canadian Heritage Association (Toronto, Ontario, Canada) |
| ACHA➣Australian Community Health Association |
| ACHA➣Adelaide Community Health Alliance (Australia) |
| ACHA➣Associate Commissioner for Health Affairs |