| Name | Meaning | Gender | Origin |
|---|
| Chilton | Chalk | Male | English |
| Clifford | Cliff ford | Male | English |
| Clifton | Slope settlement | Male | English |
| Clint | Settlement on the river Glyme | Male | English |
| Clinton | Settlement on the river Glyme | Male | English |
| Clive | Cliff | Male | English |
| Cola | Charcoal | Unisex | English |
| Colby | Coalworker | Male | English |
| Corey | God's peace | Male | Germanic |
| Cosmo | Order | Male | Greek |
| Courtland | Short land | Male | Dutch |
| Creighton | Creek estate | Male | English |
| Cyril | Lord | Male | Greek |
| Darrell | From Airel | Male | French |
| Darryl | From Airelle | Male | French |
| Daryl | From Airelle | Unisex | French |
| Delbert | Proud: Noble: Bright. | Male | Germanic |
| Deman | Judge | Male | English |
| Denton | The settlement in the valley | Male | English |
| Desmond | Man from south Munster | Male | Gaelic |
| Dixie | Strong power | Male | English |
| Domino | Small, rectangular black and white blocks used in the game of dominos. | Unisex | English |
| Dougal | Black stranger | Male | Gaelic |
| Douglas | Black water | Male | Gaelic |
| Dudley | Wood or clearing of Dudda | Male | English |
| Duke | Duke | Male | English |
| Dunstan | Dark stone | Male | English |
| Dwight | Mountain of Zeus | Male | English |
| Eamon | Prosperous protection | Male | English |
| Earl | Nobleman | Male | English |