| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 121 | Carlie | Gaelic | Small champion. | M | |
| 122 | Carlin | Gaelic | Small champion. | M | |
| 123 | Carling | Gaelic | Variant of Carlin: Small champion. | M | |
| 124 | Carly | Gaelic | Diminutive of Carlin: Small champion. | M | |
| 125 | Carmichael | Gaelic | Follower of Michael; friend of Saint Michael. | M | |
| 126 | Carmichail | Gaelic | Son of the one who served Saint Michael. | M | |
| 127 | Carne | Gaelic | Variant of English surname Cairn meaning landmark or memorial of piled-up stones. | M | |
| 128 | Carney | Gaelic | Victorious. | M | |
| 129 | Carol | Gaelic | Champion. | M | |
| 130 | Carolan | Gaelic | Variant of Carlin: Small champion. | M | |
| 131 | Carollan | Gaelic | Variant of Carlin: Small champion. | M | |
| 132 | Carolus | Gaelic | Champion. | M | |
| 133 | Carraig | Gaelic | Rocky headland. | M | |
| 134 | Carrick | Gaelic | Rocky headland. | M | |
| 135 | Carroll | Gaelic | Champion. | M | |
| 136 | Casey | Gaelic | Brave. | M | |
| 137 | Casidhe | Gaelic | Clever. | M | |
| 138 | Cassidy | Gaelic | Clever. | M | |
| 139 | Cathaoirmore | Gaelic | Great warrior. | M | |
| 140 | Cathasach | Gaelic | Brave. | M | |