BPA
- BPA Worldwide
- Banca Privada d'Andorra
- Bangladesh Police Academy
- Beaulieu Park railway station
- Beta-Nitropropionic acid
- Bisphenol A
- Bloodstain pattern analysis
- Blue Panorama Airlines
- Boardgame Players Association
- Bonneville Power Administration
- Boronophenylalanine
- Bradford Park Avenue A.F.C.
- Branch prediction analysis
- Brighton Port Authority
- British Paediatric Association
- British Parachute Association
- British Paralympic Association
- British Paramedic Association
- British Parking Association
- British Philosophical Association
- British Pipeline Agency
- British Podcast Awards
- British Pyrotechnists Association
- Bureau of Pensions Advocates
- Busan Port Authority
- Bush Pilot Airways
- Business Professionals of America
- Business and Professionals Alliance for Hong Kong
- Business process automation
- Metropolitan Black Police Association
- Oracle BPA Suite
- PBA (disambiguation)