| Abbreviation | Definition |
|---|---|
| BPFC | Botev Plovdiv Football Club |
| BPOC | Buchanan Park Opera Club |
| BPOE | Benevolent and Protective Order of Elks |
| BPRC | British Powerboat Racing Club |
| BQC | Benelux QRP Club |
| BRBC | Bad Romance Book Club |
| BRBC | Baton Rouge Bicycle Club |
| BRBC | Baton Rouge Bike Club |
| BRBC | Blue Ridge Bicycle Club |
| BRBC | Blue River Bicycle Club |
| BRBC | Boca Raton Bicycle Club |
| BRC | Beach Raquet Club |
| BRC | Book Reader Club |
| BRC | Boulder Rock Club |
| BRCCC | Black Rock City Combat Club |
| BRCCC | Boronia Radio Control Car Club |
| BRDC | British Racing Drivers Club |
| BRFC | Bangalore Rugby Football Club |
| BRHC | Ben Rhydding Hockey Club |
| BRHC | Blue Ridge Hiking Club |