| Name | Meaning | Gender | Origin |
|---|
| Caesar | Long Hair | Male | Latin |
| Cain | A spear | Male | Hebrew |
| Cale | Uncertain, perhaps slender | Male | Gaelic |
| Cameo | Delicate,carved relief | Unisex | English |
| Captain | A captain | Unisex | English |
| Casey | From Cayce | Male | American English |
| Cedric | Battle Leader | Male | Literary |
| Chaos | Gaping void | Unisex | Greek |
| Charley | Free man | Unisex | German |
| Charlie | Free man | Unisex | Germanic |
| Chico | Boy | Male | Spanish |
| Chuck | Free man | Male | German |
| Coco | A Pet Name. | Unisex | French |
| Cody | Descendant of Cuidighthigh | Male | Gaelic |
| Cookie | A small flat, crisp cake | Unisex | English |
| Cricket | A leaping insect | Unisex | English |
| Cuddles | To nestle or snuggle. | Unisex | English |
| Cupid | Desire | Unisex | Latin |
| Curly | Having curls or wavy hair. | Unisex | English |
| Cutie | A cute character. | Unisex | English |
| Dante | Enduring, obstinate | Male | Latin |
| Dexter | Dyer of cloth | Male | English |
| Dharma | Decree, custom | Male | Sanskrit |
| Digger | One that digs. | Unisex | English |
| Dinky | Dog on National Lampoon's Vacation | Unisex | English |
| Dixie | Strong power | Male | English |
| Domino | Small, rectangular black and white blocks used in the game of dominos. | Unisex | English |
| Drake | Snake, dragon | Male | English |
| Duchess | From the AristoCats | Unisex | English |
| Dudley | Wood or clearing of Dudda | Male | English |