| Abbreviation | Definition |
|---|---|
| BBLA | Bethany Beach Landowners Association |
| BBLA | Bohemian Benevolent and Literary Association |
| BBLA | Brooklyn Business Law Association |
| BBNA | Bristol Bay Native Association |
| BBPA | British Beer and Pub Association |
| BBSA | Beausejour Brokenhead Soccer Association |
| BBSA | Black Business Student Association |
| BBSA | Black Business Students Association |
| BBSA | Bloomingdale Baseball and Softball Association |
| BBSA | Braidwood Baseball Softball Association |
| BBSA | Broad Bay Sailing Association |
| BBSA | Bruin Belles Service Association |
| BBSA | Burlington Baseball and Softball Association |
| BBVAG | Belgische Beroepsvereniging voor Arbeidsgeneesheren (Dutch: Belgian Professional Association of Occu |
| BCA | Black Cybersecurity Association |
| BCA | Building Commission Association |
| BCA | Building Commissioning Association |
| BCAB | British Columbia Association of Broadcasters |
| BCAB | British Computer Association of the Blind |
| BCABA | Boards of Contract Appeals Bar Association |