BDU may refer to: Airports Bardufoss Airport (IATA code: BDU), northern Norway Boulder Municipal Airport (FAA LID: BDU), Colorado, United States Universities Bahir Dar University, Ethiopia Baku State University, Azerbaijan Bharathidasan University, Tamil Nadu, India Other Battle Dress Uniform, United States military camouflage clothing Befehlshaber der U-Boote, head of the German Navy's U-Boat arm in WWI and WWII Bizkaia–Durango, a cycling team based in Spain Broadcast distribution undertakings, the legal term for Canadian multichannel television providers Brown Debating Union, a student society at Brown University, Rhode Island, United States Oroko language of Cameroon (ISO 639 code: bdu)