| Abbreviation | Definition |
|---|---|
| DBDC | Duke Ballroom Dance club |
| DBDR | Daniel Boone Distance Riders |
| DBZ | DragonBallZ |
| DCA | Dragon's Coven of America |
| DCFF | Derby City Fly Fishers |
| DCMH | Devon And Cornwall Mink Hounds |
| DCN | Digital Clubhouse Network |
| DCOC | Dickinson College Outing Club |
| DCOC | Diplomacy Club Of Canberra |
| DCOV | Dalmatian Club Of Victoria |
| DCPA | Dutchess County Pistol Association |
| DCS | Doll Collectors Society |
| DCT | Dream Come True |
| DD | Desert Dreams |
| DD | Distant Dream |
| DD | Dungeons and Dragons |
| DDCC | Desert Dwarf Car Club |
| DEC | Dolphin Energy Club |
| DEKRA | DEutscher KRAftfahrzeug-Ueberwachungsverein (German Motor Vehicle Monitoring Association) |
| DELOREAN | Dead End, Lame Old, Raggedy Engine And Nameplate |