| N A M E | O R I G I N | M E A N I N G |
| Conall | Celtic | Strong in battle High; mighty. |
| Conall-cernach | Celtic | Mythical Ulster chieftain. |
| Conan | Celtic/Gaelic | Wise |
| Conant | Celtic | Wise. |
| Conary | Irish | An ancient Irish name whos meaning is lost in antiquety. |
| Concetto | Italian | Reference to the Immaculate Conception. |
| Conchobar | Celtic | Mythical hero. |
| Conchobhar | Irish | Strong dog; strong willed or wise. |
| Concobhar | Irish | Variant of Conchobhar: Strong dog; strong willed or wise. |
| Condan | Celtic | Dark haired wise man. |
| Condon | Celtic | the dark-haired wise man |
| Cong | Chinese | Intelligent. |
| Coniah | Biblical | Strength of the Lord |
| Conlan | Celtic/Gaelic | Hero |
| Conlen | Irish | Variant of Conlan: Hero. |
| Conleth | Irish | Ardent or wise. |
| Conley | Celtic/Gaelic | Hero |
| Conlin | Gaelic | Hero. |
| Conlon | Irish | Variant of Conlan: Hero. |
| Conn | Celtic | Mythical son of Lir: wise; High; mighty. |
| Connacht | Irish | Brave or wise. |
| Connal | Celtic | 'High; mighty.'. |
| Connell | Celtic | Strong in battle. |
| Conner | Celtic | desire, wise aid, wolf-lover |
| Connie | German | Diminutive of Conrad: Brave adviser. |
| Connla | Celtic | Mythical son of Conn. |
| Connlaio | Irish | Ardent or wise. |
| Connlan | Gaelic | Hero. |
| Connlaodh | Irish | Pure fire. |
| Connlaoi | Irish | Variant of Connlaodh: Pure fire. |
