DBU may refer to:

Universities

• Dallas Baptist University, Texas, U.S.

• Debre Birhan University, Amhara Region, Ethiopia

• Desh Bhagat University, Mandi Gobindgarh, Punjab, India

• Duluth Business University, Minnesota, U.S.

Other uses

• 1,8-Diazabicyclo[5.4.0]undec-7-ene, an organic chemical

• Bondum Dogon language of Mali (ISO 639-3 code: dbu)

• Danish Football Association (Dansk Boldspil-Union)

• dBu, "decibels unloaded" or "dBm unloaded", a logarithmic unit of signal voltage

• Deutsche Billard Union; see European Pocket Billiard Federation

• Deutsche Buddhistische Union, umbrella group of Buddhist associations in Germany

• Dutch Burgher Union of Ceylon, serving the Dutch Burghers ethnic group of Sri Lanka

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