- DBU stands for Deutsche Bundesstiftung Umwelt (German: German Federal Environmental Foundation)
- DBU stands for Dallas Baptist University
- DBU stands for Dansk Boldspil Union (Danish Soccer Union)
- DBU stands for 1,8-Diazabicyclo (5.4.0)undec-7-Ene
- DBU stands for Deutschen Buddhistischen Union (German: German Buddhist Association)
- DBU stands for Dépôt des Bibliothèques Universitaires (French: Deposit of University Libraries; Switzerland)
- DBU stands for Division du Budget (French: Budget Division)
- DBU stands for Dial Back-Up
- DBU stands for Domestic Banking Unit
- DBU stands for Decibel Unit
- DBU stands for Dan Brown’s Universe (video blog)
- DBU stands for Dialog Base Unit
- DBU stands for Daily Bread Uganda
DBU