DBB
- Daigasso! Band Brothers
- Dasmariñas Bagong Bayan
- Davis Brody Bond
- De Broglie–Bohm theory
- Deep Banana Blackout
- Design–bid–build
- Deutsche Bundesbahn
- Deutsche Bundesbank
- Deutscher Brauer-Bund
- Don Bosco Bandel
- Duffle Bag Boy
- El Alamein International Airport
- German Bandy Federation
- German Basketball Federation
- German Civil Service Federation
- German Union of Building Trades
- IBM