AACH
| Acronym | Definition |
|---|---|
| AACH | Arlington-Alexandria Coalition for the Homeless (est. 1985; Arlington, VA) |
| AACH | American Academy on Communication in Healthcare |
| AACH | Asian American Church of Houston (Houston, TX) |
| AACH | Atlanta Advanced Communications Holdings Limited (Marietta, GA) |
| AACH | American Academy of Clinical Homeopathy (Conyers, GA) |
| AACH | Atypical Alveolar Cell Hyperplasia |