| Abbreviation | Definition |
|---|---|
| DBKC | Daytona Beach Kennel Club |
| DBMC | Discovery Bay Marina Club |
| DBPC | Dallas Burston Polo Club |
| DBPC | Diablo Basics Parents Club |
| DBSC | Dalgety Bay Sailing Club |
| DBSC | Dirty Boy Social Club |
| DBSC | Double Bay Sailing Club |
| DBSC | Dublin Bay Sailing Club |
| DBTC | David Brown Tractor Club |
| DBTC | Daytona Beach Track Club |
| DBTC | Denver Bicycle Touring Club |
| DBTC | Desautels Business Technology Club |
| DCAMC | Darke County Aero Modelers Club |
| DCBC | Darwin College Boat Club |
| DCBC | Downing College Boat Club |
| DCBC | Druid City Bicycle Club |
| DCBC | Dubbo City Bowling Club |
| DCBC | Dutch Caribbean Business Club |
| DCCA | Dogo Canario Club of America |
| DCCC | Derbyshire County Cricket Club |