| ADHA | Advanced Data Handling Architecture
| Others |
| ADHA | American Dental & Hygienists Association
| Others |
| ADHA | American Dental Hygiene Association
| Others |
| ADHA | American Dental Hygienist Association
| Others |
| ADHA | American Dental Hygienists Association
| Others |
| ADHA | American Drum Horse Association
| Others |
| ADHA | American Dwarf Hop Association
| Others |
| ADHA | Association for the Development of Hop Agronomy
| Others |
| ADHA | Australian Department of Health and Aging
| Others |
| ADHA | Australian Digital Health Agency
| Others |
| ADHA | Automatic Data Historical Archive
| Others |