BPA may refer to:

• BPA Worldwide, an organization that audits circulation figures for mass media
• Banca Privada d'Andorra
• Bangladesh Police Academy
• Blue Panorama Airlines, ICAO code
• Bonneville Power Administration, a U.S. power authority
• Boardgame Players Association
• Bradford Park Avenue A.F.C., an association football club
• British Parking Association
• British Parachute Association
• British Paralympic Association
• British Paediatric Association
• British Philosophical Association
• British Pipeline Agency, a joint venture between BP Oil UK and Shell UK
• British Podcast Awards
• British Pyrotechnists Association
• Bureau of Pensions Advocates, a semi-independent unit of Veterans Affairs Canada that provides legal support to Vets and RCMP
• Busan Port Authority
• Bush Pilot Airways (a.k.a. Air Queensland), a former Australian airline
• Business and Professionals Alliance for Hong Kong, a pro-establishment political party in Hong Kong
• Business Professionals of America, a career and technical student organization that is headquartered in Columbus, Ohio
• Metropolitan Black Police Association, a body representing Black and Asian members of the Metropolitan Police in London, United Kingdom

• Bisphenol A, a carbon-based synthetic compound used in the manufacture of certain plastics
• Bloodstain pattern analysis, a technique in forensic science
• Beta-Nitropropionic acid, a mycotoxin
• Branch prediction analysis, in cryptography
• Business process automation
• Boronophenylalanine, a chemical used in neutron capture therapy of cancer

• Brighton Port Authority, an alias for musician Norman Cook (born 1963), better known as Fatboy Slim
• Oracle BPA Suite, Business Process Analysis software

• PBA (disambiguation)