| Welsh baby names begining from C |
| Cadarn |
 | Strong. |
| Cadawg |
 | Battle sharp. |
| Caddell |
 | Variant of Cadell: Small battle; spirit of the battle. |
| Caddoc |
 | Battle sharp. |
| Caddock |
 | War-ready; battle sharp. |
| Cade |
 | Diminutive of Cadell: Small battle; spirit of the battle. |
| Cadel |
 | Variant of Cadell: Small battle; spirit of the battle. |
| Cadell |
 | Small battle; spirit of the battle. |
| Cadellin |
 | Legendary father of Gweir. |
| Caden |
 | Spirit of battle. See also Kade. |
| Cadi |
 | Pure. |
| Cadman |
 | Warrior. |
| Cadmon |
 | Warrior. |
| Cadwalader |
 | Variant of Cadwaladr: War leader; battle leader. |
| Cadwaladr |
 | Battle leader. This name dates back to the 7th century. More commonly used as a surname than a first name in the present day. |
| Cadwaladyr |
 | Variant of Cadwaladr: War leader; battle leader. |
| Cadwallader |
 | Battle leader. This name dates back to the 7th century. More commonly used as a surname than a first name in the present day. |
| Cadwallen |
 | Battle disolver. Also a variant of Cadwallon: Arranges the battle. |
| Cadwallon |
 | Arranges the battle. |
| Cadwgawn |
 | Legendary son of Iddon. |
| Cadwr |
 | Legendary son of Gwlyon. |
| Cadwy |
 | Legendary son of Gereint. |
| Cadwyn |
 | Chain. |
| Cadyryeith |
 | Well spoken. |
| Caer Llion |
 | From Caerleon. |
| Caerau |
 | From the castle. |
| Caerwyn |
 | White fortress. |
| Caethes |
 | Slave. |
| Cafell |
 | Oracle. |
| Cai |
 | A diminutive of Cajus, frequently used as an independent name in Wales. Rejoicer. |
| Cain |
 | Clear water. |
| Caio |
 | Variant of Cai: Joy. |
| Caius |
 | Variant of Cai: Joy. |
| Calcas |
 | Legendary son of Caw. |
| CaledvwIch |
 | Legendary Excalibur, King Arthur's sword. |
| Camedyr |
 | Legendary son of Govynyon. |
| Caniad |
 | Song. |
| Cant |
 | White. |
| Caradawg |
 | Legendary father of Eudav. |
| Caradoc |
 | Affection; amiable. Famous bearer: First century British king Caradoc, better known as King Caractacus. |
| Caradog |
 | Variant of Caradoc: Affection; amiable. |
| Carey |
 | Near the castle; from the castle. |
| Carne |
 | Variant of English surname Cairn meaning landmark or memorial of piled-up stones. |
| Carthage |
 | Variant of Caradoc: Affection; amiable. |
| Carwyn |
 | Variant of Caerwyn: White fortress. |
| Cary |
 | From the castle. 'Loving.'. |
| Caryl |
 | Variant of Carys: Love. |
| Carys |
 | Love. |
| Cas |
 | Legendary son of Seidi. |
| Casnar |
 | Legendary nobleman. |
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