| Abbreviation | Definition |
|---|---|
| CGC | Captains Girls Club |
| CGC | Crazy Girls Club |
| CGCC | Columbia Graduate Consulting Club |
| CGCI | California Garden Clubs Inc |
| CGFC | Caulfield Grammarians Football Club |
| CGHN | Club Gendarmerie de Haute Normandie |
| CGRC | Coastal Georgia Reef Club |
| CGRC | Columbia Gorge Running Club |
| CGSC | Coconut Grove Sailing Club |
| CGSWDC | Carolina German Shepherd Working Dog Club |
| CGVF | Club de la Grande Vitesse Ferroviaire |
| CHGC | Chapel Hill Garden Club |
| CHGC | Chesapeake Hills Golf Club |
| CHGC | Coffs Harbour Garden Club |
| CHGC | Craigie Hill Golf Club |
| CHGC | Croham Hurst Golf Club |
| CHSC | Cherry Hill Soccer Club |
| CHTC | Chapel Hill Tennis Club |
| CHTC | Commit High Treason Club |
| CHTC | Copper Harbor Trails Club |