| Abbreviation | Definition |
|---|---|
| BCA | Bone Crushing Alliance |
| BCAA | Bethlehem Central Athletic Association |
| BCAF | Bowling Centers' Association of Florida |
| BCB | Bangladesh Cricket Board |
| BCB | Berbice Cricket Board |
| BCCA | Bergen County Coaches Association |
| BCCC | Bay City Country Club |
| BCCI | Board of Control for Cricket in India |
| BCCR | Boys Cross Country Regionals |
| BCD | Bolt Circle Diameter |
| BCHM | Bryce Canyon Half Marathon |
| BCI | Basketball Club International |
| BCI | Basketball Congress International |
| BCIAA | Berks County Interscholastic Athletic Association |
| BCIO | Bass Chasin' In Ohio |
| BCLA | British Columbia Lacrosse Association |
| BCO | Bing Crosby Open |
| BCRA | Bay Cities Racing Association |
| BCS | Bar Crew Style |
| BCS | Basketball Championship Showdown |