| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 81 | Cador | ArthurianLegend | Nephew of Arthur. | M | |
| 82 | Cadwallon | ArthurianLegend | A seventh century king. | M | |
| 83 | Caerleon | ArthurianLegend | Name of a battle site. | M | |
| 84 | Cafall | ArthurianLegend | Arthur's dog. | M | |
| 85 | Cai | ArthurianLegend | Arthur's brother. | M | |
| 86 | Calibom | ArthurianLegend | Various names for Arthur's sword. | M | |
| 87 | Calibome | ArthurianLegend | Various names for Arthur's sword. | M | |
| 88 | Calibor | ArthurianLegend | Various names for Arthur's sword. | M | |
| 89 | Calibum | ArthurianLegend | Various names for Arthur's sword. | M | |
| 90 | Calibumus | ArthurianLegend | Various names for Arthur's sword. | M | |
| 91 | Calogrenant | ArthurianLegend | A knight. | M | |
| 92 | Camelon | ArthurianLegend | Site of Arthur's last battle. | M | |
| 93 | Camelot | ArthurianLegend | Arthur's castle. | F | |
| 94 | Camlann | ArthurianLegend | Site of Arthur's last battle. | M | |
| 95 | Caradawc | ArthurianLegend | Son of Bran. | M | |
| 96 | Caradoc | ArthurianLegend | Son of Bran. | M | |
| 97 | Carmelide | ArthurianLegend | Guinevere's father. | M | |
| 98 | Carrado | ArthurianLegend | A knight. | M | |
| 99 | Cath | ArthurianLegend | Name of a monster. | M | |
| 100 | Catterick | ArthurianLegend | Name of a battle. | M | |