| Abbreviation | Definition |
|---|---|
| BBRC | Bakersfield Breakfast Rotary Club |
| BBRC | Beccles and Bungay Riding Club |
| BBRC | Bellevue Breakfast Rotary Club |
| BBRC | Browns Bay Racquets Club |
| BBS | British Bozo Society |
| BBSC | Back Bar Squash Club |
| BBSC | Back Bay Social Club |
| BBSC | Baranof Barracuda Swim Club |
| BBSC | Beachwood Bison Swim Club |
| BBSC | Birmingham Bloomfield Soccer Club |
| BBSC | Bluewater Bay Sailing Club |
| BBSC | Bradley Bourbonnais Swim Club |
| BBSC | Broadneck Baseball Softball Club |
| BBSC | Bureh Beach Surf Club |
| BBTC | Berkshire Belgian Tervuren Club |
| BBWC | Barrington Broncos Wrestling Club |
| BCA | Book Club Associates |
| BCA | Buick Club of America |
| BCA | Bulldog Club of America |
| BCA | Business Clubs America |