| Abbreviation | Definition |
|---|---|
| CDPA | Cat Dog Protection Agency of Ireland |
| CDPA | Cat & Dog Protection Agency of Ireland |
| CDRCP | Carolina Dog Rescue and Conservation Project |
| CDSP | Companion Dog Sports Program |
| CDT | Certified Dog Trainer |
| CDTC | Capital Dog Training Club |
| CDTC | Charlotte Dog Training Club |
| CDTS | Cranbourne Dog Training School |
| CDX | Companion Dog Excellent |
| CERF | Canine Eye Registriation Foundation |
| CFC | Canadian Field Champion |
| CFD | common dog f-ck |
| CFDC | Colorado Federation of Dog Clubs |
| CFODC | California Federation Of Dog Clubs |
| CFODC | Central Florida Obedience Dog Club, Inc. |
| CG | Certificate of Gameness |
| CGC | Canine Good Citizen Certificate |
| CGN | Canine Good Neighbour |
| CGSWDC | Carolina German Shepherd Working Dog Club |
| CH | CHampion |