BBU
BBU stands for:
- Railway accident
- Basketball union, see BBU Salzburg
- Battery Backup Unit , battery emergency power supply for data backup
- Bleiberger Bergwerks Union , Austrian mining company
- British Biathlon Union
- Bucharest Băneasa Airport (IATA code)
- Federal Agency for Care and Support Services , Austrian state company
- Federal Association of Citizens' Initiatives Environmental Protection , umbrella organization based in Bonn
- Association of Berlin-Brandenburg Housing Companies , see GdW Federal Association of German Housing and Real Estate Companies # Member Associations
- Berlin-Buch train station (DS100 code)
bbu stands for:
- Kulung (ISO-639-3 code), jarawoide language in the Nigerian state of Taraba
