| Abbreviation | Definition |
|---|---|
| BAYB | Baldwin Area Youth Basketball |
| BB | BB Basketball |
| BBA | Blythefield Basketball Association |
| BBALL | Basketball |
| BBB | Big Baller Brand |
| BBBA | Byron Bay Basketball Assoc |
| BBBL | Baltic Boys Basketball League |
| BBL | Baltic Basketball League |
| BBL | British Basketball |
| BBL | British Basketball League |
| BBLL | Basketball |
| BCAM | Basketball Coaches Association of Michigan |
| BCAT | Basketball Coaches Association of Tennessee |
| BCB | Bolingbrook Community Basketball |
| BCBA | Brooklyn Children Basketball Association |
| BCI | Basketball Club International |
| BCI | Basketball Congress International |
| BCL | Basketball Champions League |
| BCL | Basketball Coaching Legend |
| BCS | Basketball Championship Showdown |