| Abbreviation | Definition |
|---|---|
| BPSA | Bloustein Public Service Association |
| BPSA | British Philosophy of Sport Association |
| BPSA | British Prostatitis Support Association |
| BRA | Boys' Rights Association |
| BRA | British Rowing Association |
| BRAA | Baton Rouge Apartment Association |
| BRAA | Blacksburg Regional Art Association |
| BRAA | Brook Road Allotment Association |
| BRAG | Bear River Association of Governments |
| BRAP | Biological Risk Association Philippines |
| BRASS | Black Sea Region Association of Shipbuilders and Shiprepairers |
| BRAV | Business Recovery Association of Virginia |
| BRBA | Blood River Baptist Association |
| BRBA | Blue Ridge Baptist Association |
| BRBAA | Big Red Band Alumni Association |
| BRCA | British Radio Car Association |
| BRDAA | Bicycle Ride Directors' Association of America (Fullerton, CA) |
| BRHBA | Blue Ridge Home Builders Association (Charlottesville, VA) |
| BRIA | Baffin Regional Inuit Association |
| BRLA | Bedford Riding Lanes Association |