BDU may refer to:

Airports

  • Bardufoss Airport (IATA code: BDU), northern Norway
  • Boulder Municipal Airport (FAA LID: BDU), Colorado, US

Education

  • Bahir Dar University, Ethiopia
  • Baku State University, Azerbaijan
  • Bharathidasan University, Tamil Nadu, India
  • Brown Debating Union, Brown University, Rhode Island, US

Military

  • Battle Dress Uniform, historical American camo
  • Befehlshaber der U-Boote, head of the German Navy's U-Boat arm in WWI and WWII

Other uses

  • B.D.U, a South Korean boy band
  • Bizkaia–Durango, a cycling team based in Spain
  • Broadcast distribution undertakings, the legal term for Canadian multichannel television providers
  • Oroko language, spoken in Cameroon (ISO 639-3:<code>bdu</code>)
  • Data Security Threats Database (BDU), a Russian software vulnerability database