| Acronym | Definition |
|---|
| BNA | Bureau of National Affairs, Inc. |
| BNA | Birds of North America |
| BNA | Bond van Nederlandse Architecten (Dutch: Royal Institute of Dutch Architects; professional association) |
| BNA | block numbering area (US Census) |
| BNA | British North America |
| BNA | Banco Nacional de Angola (National Bank of Angola) |
| BNA | Banque Nationale Agricole |
| BNA | Banco de la Nación Argentina |
| BNA | Banque Nationale d'Algerie |
| BNA | Boots N All |
| BNA | British Neuroscience Association |
| BNA | Business News Americas |
| BNA | Billing Name and Address |
| BNA | British Nursing Association |
| BNA | Bolsa Nacional Agropecuaria |
| BNA | British Naturalists' Association |
| BNA | Base/Neutral/Acid |
| BNA | Baromedical Nurses Association |
| BNA | Bonerate (SIL code, Sulawesi) |
| BNA | Bénéfice Net par Action (French: Earning per Share) |
| BNA | British Naturopathic Association |
| BNA | Burroughs Network Architecture |
| BNA | Bruxelles Nous Appartient (French: Brussels Belongs to Us; cultural association; Brussels, Belgium) |
| BNA | Bureau de Normalisation de l'Automobile (French: Automotive Bureau of Standards) |
| BNA | Nashville, TN, USA - Nashville Metropolitan Airport (Airport Code) |
| BNA | By Name Assignment (USMC training and education system) |
| BNA | Boeing North America |
| BNA | Business Needs Assessment |
| BNA | Brighton Neighborhood Association |
| BNA | Botswana National Archives |
| BNA | Beaverdale Neighborhood Association |
| BNA | Barrow Neurosurgical Associates, Ltd. |
| BNA | Bank Note Acceptor |
| BNA | Business Name Availability |
| BNA | Basse-Normandie Active (French financial assistance association) |
| BNA | Business Net Areas |
| BNA | Botswana National Atlas |
| BNA | Basic Nomina Anatomica |
| BNA | Boeing Network Architecture |
| BNA | Business Network Architecture (Nynex) |
| BNA | Base Network Administrator |
| BNA | Bannister Neighborhood Association (Waldorf, Maryland) |
| BNA | Betteraves Névrosées d'Amiens (French student association) |
| BNA | Biological Network Analysis (bioinformatics) |
| BNA | Brigade Nantaise Airsoft (French: Nantes Airsoft Squad; Nantes, France) |