| Name | Meaning | Gender | Origin |
|---|
| Clifford | Lives by the ford near the cliff
| Male | English |
| Clifton | place on a cliff | Male | English |
| Clyde | Nature name | Male | Scottish |
| Cody | Helpful.
| Male | English |
| Connie | Constant, Firm | Male | English |
| Corey | raven, from the hollow | Male | Irish |
| Cory | from the hollow | Male | Irish |
| Curtis | courteous, polite | Male | |
| Dale | Lives in the valley
| Male | English |
| Daniel | my judge is the Lord | Male | Hebrew |
| Danny | God Is My Judge | Unisex | English |
| Darren | great, rocky hill | Male | Irish |
| Darryl | Of Airelle, France | Unisex | English |
| Dave | David's son
| Male | Short |
| David | Dearly loved
| Male | Hebrew |
| Dean | From the valley. | Male | English |
| Dennis | Named for Saint Denys
| Male | |
| Derek | and brother Domino, from the '70s rock group Derek and the Dominoes | Male | English |
| Derrick | Gifted ruler. From Theodoric.
| Male | |
| Don | World Leader | Male | English |
| Donald | ruler of the world, brown stranger | Male | Scottish |
| Duane | dark, from the dunes | Male | Irish |
| Dustin | valiant fighter, dark stone | Male | Norse |
| Dwight | fair, fair one | Male | |
| Earl | A British nobleman equivalent to a European count | Male | English |