| Name | Meaning | Gender | Origin |
|---|
| Crow | | Male | Hebrew |
| Crusty | | Unisex | Hebrew |
| Custard | A dessert made from milk and eggs, creamy yellow in appearance. | Unisex | |
| Cyan | greenish blue color | Male | English |
| Dandelion | A yellow rosette shaped flower. | Unisex | |
| Dank | | Unisex | Hebrew |
| Danube | | Male | Hebrew |
| Dee | Dark | Unisex | Welsh |
| Demon | | Unisex | |
| Demon | | Unisex | |
| Denim | Strong Cloth | Male | English |
| Denver | green valley | Male | English |
| Devil | | Unisex | Hebrew |
| Domino | Small, rectangular black and white blocks used in the game of dominos. | Male | Latin |
| Donald | ruler of the world, brown stranger | Male | Scottish |
| Donovan | dark | Male | Irish |
| Dorian | place name | Male | Greek |
| Dotty | From Dorothy - Gift of God. Also covered in dots. Another meaning is amusingly eccentric or absurd. | Unisex | |
| Doug | From The Dark Water | Unisex | Scottish |
| Dougal | Black stranger | Male | Scottish |
| Douglass | Dark Water | Unisex | English |
| Dove | dove, a bird | Male | Color |
| Doyle | black stranger | Male | Irish |
| Duane | dark, from the dunes | Male | Irish |
| Dugan | to be worthy | Male | Irish |