| Name | Meaning | Gender | Origin |
|---|
| Charlie | Free man | Unisex | Germanic |
| Chauncey | Chancellor: Fortune: A Gamble. | Male | English |
| Chewy | Needing chewing. | Unisex | English |
| Chico | Boy | Male | Spanish |
| Chuck | Free man | Male | German |
| Clancy | Red | Male | Gaelic |
| Clem | Merciful, mild, gentle | Male | Latin |
| Clyde | Refers To The Scottish Clyde River. | Male | Gaelic |
| 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 |
| Coke | Short for the most famous brand of soft drink, Coca-Cola. | Unisex | English |
| Comet | A celestial body | Unisex | English |
| Cooper | Barrel maker | Male | English |
| Corky | Variant Of Corey Hill Hollow. | Unisex | English |
| Cormac | Son of raven | Male | Gaelic |
| Cortez | In triumph | Male | Spanish |
| Cotton | Woody hill | Unisex | Welsh |
| Cricket | A leaping insect | Unisex | English |
| Cruz | Cross | Male | Spanish |
| Cuddles | To nestle or snuggle. | Unisex | English |
| Cujo | | Unisex | Hebrew |
| Cupcake | Small cake baked in a cup shaped container | Unisex | English |
| Cutie | A cute character. | Unisex | English |
| Dallas | Meadow stance | Male | Gaelic |
| Danger | | Unisex | Hebrew |
| Dante | Enduring, obstinate | Male | Latin |
| Darrell | From Airel | Male | French |
| Darwin | Dear friend | Male | English |