| Acronym | Definition |
|---|
| BDU | Battle Dress Uniform |
| BDU | Bharathidasan University (India) |
| BDU | Bund Deutscher Unternehmensberater (German: Confederation of German Management Consultants) |
| BDU | Business Development Unit (Staffordshire University, UK) |
| BDU | Bundesverbandes Deutscher Unternehmensberater eV |
| BDU | Befehlshaber Der U-Boote (commander-in-chief of the German submarines in WW-II) |
| BDU | Bomb Disposal Unit |
| BDU | Bahir Dar University (Ethiopia) |
| BDU | Bone Dry Unit (energy science) |
| BDU | Bomb, Dummy Unit |
| BDU | Broadcast Distribution Undertaking |
| BDU | Brain Dead User |
| BDU | Battle Dress Utility |
| BDU | Bundesverband der Dolmetscher und Übersetzer (German: Federal Association of Interpreters and Translators) |
| BDU | Below-Deck Unit |
| BDU | Basic Display Unit |
| BDU | Bardufoss Airport, Norway (Airport code) |
| BDU | Battery Display Unit |
| BDU | Barking Dogs United (artist duo) |
| BDU | Big Dumb User |
| BDU | Business Dial Up |
| BDU | Bus Data Unit |
| BDU | Breath Delivery Unit (ventilators) |
| BDU | Buffy Downunder (website) |
| BDU | Bomb Dispenser Unit |
| BDU | Blood Donor Unit |
| BDU | Bomb Depleted Uranium |