| Abbreviation | Definition |
|---|---|
| COSA | Central Ohio Soaring Association |
| COSC | Chief Okemos Sportsman's Club |
| COSIDA | College Sports Information Directors of America |
| COT | Camping Device |
| COTA | Circuit of The Americas |
| COYBIG | Come On You Boys In Green |
| COYQ | Come On you Quin's |
| CP | Can't Play |
| CP | Card Points |
| CP | Championship Points |
| CP | Cheer Points |
| CP | Contribution Points |
| CPA | Can't Pass Again |
| CPAF | California Police Athletic Federation |
| CPAFLA | Canadian Physical Activity, Fitness, and Lifestyle Approach |
| CPBA | Clinton Pocket Billiards Association |
| CPC | Canadian Paralympic Committee |
| CPF | Climb Performance Factor |
| CPFL | Couch Potato Football League |
| CPL | Cyberathlete Professional League |