| Abbreviation | Definition |
|---|---|
| BRYAA | Boca Raton Youth Athletic Association (Boca Raton, FL) |
| BSA | Bearing Specialists Association |
| BSA | Beavercreek Soccer Association |
| BSA | Becontree School Association |
| BSA | Building Societies Association |
| BSA | Business Solutions Association |
| BSAA | Business Software Association of Australia |
| BSAE | Belgian Society of Association Executives |
| BSAM | Baptist Secretaries Association of Missouri |
| BSAM | Billiards and Snooker Association of Maharashtra |
| BSAP | Bishop Seabury Association of Parents |
| BSBA | British Sun Bathers Association |
| BSBMA | Blackwater Sailing Barge Match Association |
| BSCA | Bahamas Sportfishing Conservation Association |
| BSCA | Bellevue Sister Cities Association |
| BSCA | Bellingham Sister Cities Association |
| BSCA | Brazil Specialty Coffee Association |
| BSCA | Brazil Specialty Coffee Association's |
| BSDA | Birmingham Square Dance Association |
| BSDA | British Soft Drinks Association |