- Cairn Terrier
- Cairnoodle
- Canaan Dog
- Cane Corso Mastiff
- Cao De Castro Laboreiro
- Carolina Dog
- Catahoula Leopard Dog
- Caucasian Mountain Dog
- Cavachon
- Cavalier King Charles Spaniel
- Cavapoo
- Central Asian Ovtcharka
- Cesky Terrier
- Chesapeake Bay Retriever
- Chi-Poo / Chipoo
- Chihuahua
- Chinese Chongqing Dog
- Chinese Crested
- Chinese Foo Dog
- Chinese Shar-Pie
- Chinook
- Chow Chow
- Cirneco Dell Etna
- Clumber Spaniel
- Cockabichon
- Cockapoo
- Cocker Spaniel
- Collie
- Corgi
- Coton De Tulear
- Curly Coated Retriever
- Czechoslovakian Wolfdog
Cairn Terrier to Czechoslovakian Wolfdog
