DB
- .db
- Aston Martin
- Brit Air
- D-subminiature
- DB (car)
- DB Breweries
- DB Draw
- DB Networks
- DB Records
- DJ DB
- Daily Bugle
- Database
- David Brown (entrepreneur)
- Decibel
- Defensive back
- Defined benefit pension plan
- Detective Branch
- Deutsche Bahn
- Deutsche Bank
- Deutsche Bundesbahn
- Discovery Bay
- Dobyns-Bennett High School
- Doing Business Report
- Dolderbahn
- Double-breasted
- Dragon Ball
- Dubnium
- Dâmbovița County
- D♭ (musical note)
- State Security Directorate (Serbia)
- The dB's
- ȸ