| Name | Meaning | Gender | Origin |
|---|
| Coffee | | Unisex | Hebrew |
| Cognac | Type of French brandy. | Unisex | |
| Coke | Short for the most famous brand of soft drink, Coca-Cola. | Unisex | |
| Cola | Carbonated soft drink made in part from extract of the cola nut. | Unisex | |
| Cookie | A small flat, crisp cake | Female | |
| Copper | A reddish brown metal - as in copper penny coins. Also slang for a police officer. | Female | Word |
| Copper | A reddish brown metal - as in copper penny coins. Also slang for a police officer. | Female | Word |
| Copper Penny | | Unisex | Hebrew |
| Corky | Lively, buoyant. | Unisex | |
| Cricket | A leaping insect | Female | Nature |
| Crimson | A deep of vivid red colour. | Female | Color |
| Dapple | | Unisex | Hebrew |
| Della | German, noble | Female | English |
| Don | World Leader | Male | English |
| Donald | ruler of the world, brown stranger | Male | Scottish |
| Donovan | dark | Male | Irish |
| Dougal | Black stranger | Male | Scottish |
| Duane | dark, from the dunes | Male | Irish |
| Duffy | Dark Faced | Female | Celtic |
| Dun | Dark | Unisex | English |
| Duncan | Dark complexioned warrior. | Male | Scottish |
| Dune | | Male | Hebrew |
| Dunn | brown | Male | Scottish |
| Eartha | The earth.
| Female | English |
| Edmund | fortunate protector | Male | English |