| Acronym | Definition |
|---|
| HDSD➣Headquarters and Desktop Services Division |
| HDSD➣Hillsboro-Deering School District (New Hampshire) |
| HDSD➣Hazel Dell Sewer District (Vancouver, WA) |
| HDSD➣Hypobaric Decompression Sickness Databank (US NASA) |
| HDSD➣High Density Storage Device |