| Acronym | Definition |
|---|
| EHDD➣Esherick Homsey Dodge and Davis (architectural firm; San Francisco, CA) |
| EHDD➣External Hard Disk Drive |
| EHDD➣Electronic Head Down Display |
| EHDD➣Explosive and Hazardous Devices Detail (Tucson Police Department) |
| EHDD➣Enhanced Head Down Display |
| EHDD➣Environment Hygiene and District Development (committee) |