| Abbreviation | Definition |
|---|---|
| CCRA | Cerrito Colorado Road Association |
| CCRA | Champaign County Rifle Association |
| CCS | Championship Cup Series |
| CCSLC | Chris Creamer's Sports Logos Community |
| CCSP | Certified Chiropractic Sports Practitioner |
| CCTA | Central California Tennis Association |
| CCTC | Chester County Trail Club |
| CCW | Chaos Championship Wrestling |
| CCW | Clown Championship Wrestling |
| CCWA | Cory Crothers Wrestling Allinace |
| CCWFL | Central Canada Women's Football League |
| CCY | Canada Cup Youth |
| CD | Classical Dressage |
| CDAB | Central District Athletic Board |
| CDCA | Canadian Diving Coaches Association |
| CDD | Clue Deficit Disorder |
| CDFL | Collegiate Development Football League |
| CDFS | Capital District Fencing School |
| CDI | Concours de Dressage International |
| CDJSC | Chester Downing Junior Sailing Club |