| Name | Meaning | Details |
|---|---|---|
| Ciar | Black-haired Or Dark-skinned | View Details |
| Ciara | Black-haired Or Dark-skinned | View Details |
| Clancy | Red Warrior | View Details |
| Claret | Dark Red Color | View Details |
| Crimson | Dark Red Color | View Details |
| Daray | Dark | View Details |
| Darcie | Of The Dark | View Details |
| Darcy | Dark One | View Details |
| Darth | Dark | View Details |
| Devin | Descendant Of The Dark-haired One | View Details |
| Dolan | Dark Haired | View Details |
| Donagh | Brown Warrior | View Details |
| Dougal | Dark Stranger | View Details |
| Doyle | Dark Foreigner | View Details |
| Duane | Little Dark One | View Details |