| Acronym | Definition |
|---|
| ADHA➣American Dental Hygienists' Association |
| ADHA➣American Drum Horse Association (Chalk Hill, PA) |
| ADHA➣Additional Duty Hour Allowance |
| ADHA➣Australian Department of Health and Aging |
| ADHA➣Automatic Data Historical Archive (virtual data management) |
| ADHA➣Airdrop Hazard Area (US DoD) |
| ADHA➣Arabians of the Desert Horse Association (equestrian club; California) |