| Abbreviation | Definition |
|---|---|
| BCWBA | Bexar County Women's Bar Association (Texas) |
| BDA | Brainless Dumb Association |
| BDA | British Drilling Association |
| BDA | Broadcast Design Association |
| BDAA | Bala and District Angling Association |
| BDAA | Balalaika and Domra Association of America |
| BDAA | Balangir District Athletic Association |
| BDAA | Big Data and Analytics Association |
| BDAA | British Disabled Angling Association |
| BDAI | Bio Dynamic Association of India |
| BDAID | Bangladesh Development Association for International Developments |
| BDAP | Book Development Association of the Philippines |
| BDAR | Bagnell Dam Association of Realtors |
| BDCA | Bradford & District Chess Association |
| BDFA | British Disabled Fencing Association |
| BDFA | British Disabled Flying Association |
| BDIA | Barnsley Driving Instructors Association |
| BDIA | British Dental Industry Association |
| BDIA | Bulgarian Defensive Industry Association |
| BDMA | Belgian Direct Mail Association |