| Abbreviation | Definition |
|---|---|
| DBDN | Deenbandhu Deenanth, actor |
| DC | Dante Culpepper |
| DC | Darn Cat |
| DC | David Coulter |
| DC | Dennis Childs |
| DC | Doctor Clown |
| DC | Donald Cameron |
| DC | Dorothy Catherine (Fontana) |
| DC | Drew Carey |
| DCF | Dorothy Canfield Fisher, children's book author |
| DD | David Duchovny |
| DD | Doctor Doom |
| DD | Donald Duck |
| DDD | Dimples Da Demon |
| DDE | Dwight David Eisenhower |
| DDL | Daniel Day-Lewis |
| DE | Dale Earnhardt |
| DERF | John Backderf, Artist |
| DEVASTATINGELITEARMYOFDESTRUCTION | Gaming Clan Started by a group of Guys in Wisconsin {DEAD} |
| DEW | Daniel E. Williams, Premier of Newfoundland and Labrador |