| Abbreviation | Definition |
|---|---|
| DNA | National Dyslexic Association |
| DNIF | Darden Nonprofit Internship Fund |
| DNRG | Diabetes National Research Group |
| DNV | Det Norske Veritas |
| DNVHC | Det Norske Veritas Healthcare Inc. |
| DOF | Dreams Of Freedom |
| DOG | Director Of Guidance |
| DOI | Date Of Indoctrination |
| DOLA | Detroit Office Legal Actions |
| DOT | Dreams of Tomorrow |
| DOTS | Dalmatian Overland Transport Service |
| DOW | Defenders Of Wildlife |
| DPAAS | Defense Planning and Analysis Society |
| DPCA | Devaun Park Community Association |
| DPG | Dinosaur Protection Group |
| DPGA | Delmarva Peninsula Golf Association |
| DPO | Dayton Philharmonic Orchestra |
| DPOA | Disabled Police Officers of America |
| DPOC | Dayton Philharmonic Orchestra Chorus |
| DPOIC | Depression, Bipolar, and OCD Information Centers |