| Acronym | Definition |
|---|
| DDHA➣Duration of Daily Heroin Abuse |
| DDHA➣Delaware Dental Hygienists’ Association |
| DDHA➣Det Danske Harmonika Akademi (Danish: Danish Harmonica Academy) |
| DDHA➣Developmental Disabilities Health Alliance (est. 1997; New Jersey) |
| DDHA➣Doncaster and District Heritage Association (UK) |
| DDHA➣Danish District Heating Association (heating company member organization) |
| DDHA➣Dimeric Distamycin Linked Hydroxamic Acid |
| DDHA➣Delhi District Hockey Association (India) |
| DDHA➣Duke-Durham Hunger Alliance (Duke University; Durham, NC) |
| DDHA➣Dentin-Derived Hydroxyapatite |
| DDHA➣Dallas Dream Horse Academy (Dallas, TX) |
| DDHA➣Detailed Design Hazard Analysis |