| Name | Meaning | Gender | Origin |
|---|
| Coco | A Pet Name. | Unisex | French |
| Cocoa | Cocoa Jumbo | Unisex | English |
| Coda | Passage at the end of a composition that brings it to a close. | Unisex | English |
| Cody | Descendant of Cuidighthigh | Male | Gaelic |
| Cola | Charcoal | Unisex | English |
| Comet | A celestial body | Unisex | English |
| Connor | Lover of hounds | Male | Gaelic |
| Cookie | A small flat, crisp cake | Unisex | English |
| Cooper | Barrel maker | Male | English |
| Copper | A reddish brown metal - as in copper penny coins. Also slang for a police officer. | Unisex | English |
| Corey | God's peace | Male | Germanic |
| Corky | Variant Of Corey Hill Hollow. | Unisex | English |
| Courtney | From Courtenay | Female | English |
| Cricket | A leaping insect | Unisex | English |
| Crystal | Crystal | Female | English |
| Cujo | | Unisex | Hebrew |
| Dag | Day | Male | Norse |
| Daisy | Day's eye | Female | English |
| Dakota | The allies | Female | Native American |
| Dallas | Meadow stance | Male | Gaelic |
| Dalton | Town in the valley | Male | English |
| Danger | | Unisex | Hebrew |
| Dante | Enduring, obstinate | Male | Latin |
| Darla | From The Old English Dearling: Darling. | Female | American English |
| Dash | From Chiel | Male | French |
| Dean | Valley | Male | English |
| Destiny | Destiny, fate | Female | English |
| Diablo | The Devil | Unisex | English |
| Diesel | | Unisex | Hebrew |
| Digby | Dyke farm, dyke settlement | Male | English |