| Abbreviation | Definition |
|---|---|
| CPSCC | Chocolate Pointed Siamese Cat Club |
| CPTC | Canty Parent Teacher Club |
| CPTC | Cedar Park Track Club |
| CPTC | Central Park Track Club |
| CPTC | Central Park Triathlon Club |
| CPTC | Central Pennsylvania Triumph Club |
| CPTC | College Park Tennis Club |
| CPTC | The Central Park Triathlon Club |
| CPUN | Club Penguin United Nations |
| CPVS | Club De Patinage De Vitesse |
| CR | Club Racer |
| CRAC | Chinese Radio Amateurs Club |
| CRCC | Chattanooga Radio Control Club |
| CRCN | Charlotte Racquet Club North |
| CRDC | Chelsea Reform Democratic Club |
| CRDD | Cats Rule Dogs Drool |
| CRFC | Canterbury Rugby Football Club |
| CRGC | Canby Rod and Gun Club |
| CRGC | Cedar Rod and Gun club |
| CRGC | Chester Rod and Gun Club |