| Abbreviation | Definition |
|---|---|
| BSRA | Botswana Squash Rackets Association |
| BSRA | Brisbane Schoolgirls' Rowing Association |
| BSRIA | Building Services Research and Information Association |
| BSSA | Bali Schools Sports Association |
| BSSA | Big Stick Surfing Association |
| BSSA | Biological Sciences Student Association |
| BSSA | Bonnyville Shooting Sports Association |
| BSSA | Bow Slope Shipping Association |
| BSSA | British Stainless Steel Association |
| BSSA | Buckeye State Sheriffs Association |
| BSTA | Boston Securities Traders Association |
| BSYA | Baloch Students and Youth Association |
| BTA | Bangladesh Tanners Association |
| BTA | Blood Transfusion Association |
| BTA | Bond Traders Association |
| BTA | Boring and Trepaning Association |
| BTA | Boring and Trepanning Association |
| BTA | Boxford Trails Association |
| BTA | Buckeye Trail Association |
| BTA | Building Trades Association |