- DQB stands for Dragon Quest Builders (gaming)
- DQB stands for Detroit Quality Brush (Detroit, MI)
- DQB stands for Deutsche Gesellschaft für Qualifizierung und Bewertung GmbH (German: German Society for Training and Assessment GmbH)
- DQB stands for Dutch QSL Bureau (ham radio office; est. 1929; Arnhem, Netherlands)
- DQB stands for Deal Qualification Board (Germany)
- DQB stands for Dynamic Quadrature Booster
DQB