| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 61 | Cathrine | Gaelic | Form of the Greek Catherine meaning pure. | F | |
| 62 | Catriona | Gaelic | Pure, clear. A Scottish Gaelic variant of 'Catherine', which is the French form of the Latin 'Katharina', from the Greek Aikaterina'. Famous bearer: the heroine of 19th century author Robert Louis Stevenson's novel 'Catriona'. | F | |
| 63 | Cayla | Gaelic | Slender. Variant of Caley or Cailley: (French) 'from the forest. | F | |
| 64 | Caylee | Gaelic | Slender. Variant of Caley or Cailley: (French) 'from the forest. | F | |
| 65 | Cayley | Gaelic | Slender. Variant of Caley or Cailley: (French) 'from the forest. | F | |
| 66 | Caylie | Gaelic | Slender. Variant of Caley or Cailley: (French) 'from the forest. | F | |
| 67 | Caylin | Gaelic | Girl; lass. | F | |
| 68 | Ceallach | Gaelic | Warrior maid. | F | |
| 69 | Ceara | Gaelic | Spear. | F | |
| 70 | Ceit | Gaelic | Pure. | F | |
| 71 | Ciarda | Gaelic | Dark. | F | |
| 72 | Ciorstag | Gaelic | Christian. | F | |
| 73 | Ciorstan | Gaelic | Christian. | F | |
| 74 | Coleen | Gaelic | Girl. | F | |
| 75 | Colleen | Gaelic | Girl. | F | |
| 76 | Con | Gaelic | Exalted. | F | |
| 77 | Cuini | Gaelic | Queen. | F | |
| 78 | Dara | Gaelic | Oak tree. | F | |
| 79 | Darra | Gaelic | Oak tree. | F | |
| 80 | Deardriu | Gaelic | Raging. | F | |