| Name | Meaning | Gender | Origin |
|---|
| Conner | Lover of hounds | Male | Gaelic |
| Connie | Steadfast | Unisex | Latin |
| Connor | Lover of hounds | Male | Gaelic |
| Conor | Lover of hounds | Male | Gaelic |
| Conroy | Persistent | Male | English |
| Conway | Hound Of The Plain | Male | English |
| Corbin | A steep hill | Male | Gaelic |
| Corcoran | Reddish Skin Surname. | Male | English |
| Corey | God's peace | Male | Germanic |
| Cori | Maiden | Female | Greek |
| Cormac | Son of raven | Male | Gaelic |
| Cornelius | Horn | Male | Latin |
| Cory | God's peace | Unisex | Germanic |
| Craig | Cliff | Male | Gaelic |
| Cullen | Chieftain | Male | Gaelic |
| Cuyler | Strong man | Female | German |
| Dacey | Of the Decies | Female | Gaelic |
| Daire | Fertile | Male | Gaelic |
| Daley | Descendant of Dálach | Male | Gaelic |
| Dallas | Meadow stance | Male | Gaelic |
| Damon | To tame | Male | Greek |
| Darby | Deer settlement | Female | Norse |
| Darcy | From Arcy | Female | English |
| Decla | Full of goodness | Female | Gaelic |
| Declan | Full of goodness | Male | Gaelic |
| Dedra | Uncertain, perhaps sorrow, grief | Unisex | Gaelic |
| Deidra | Uncertain, perhaps sorrow, grief | Female | Gaelic |
| Deidre | Uncertain, perhaps sorrow, grief | Female | Gaelic |
| Deirdra | Uncertain, perhaps sorrow, grief | Female | Gaelic |
| Deirdre | Uncertain, perhaps sorrow, grief | Female | Gaelic |