| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 141 | Bryn | Welsh | Hill. Many Welsh place names begin with the word 'Bryn'. | M | |
| 142 | Brynmor | Welsh | Great hill. | M | |
| 143 | Brynn | Welsh | From the hill. | M | |
| 144 | Brys | Welsh | Legendary son of Brysethach. | M | |
| 145 | Buddug | Welsh | Welsh form of Victoria: victory. | F | |
| 146 | BwIch | Welsh | Legendary son of Cleddyv Kyvwkh. | M | |
| 147 | Cadarn | Welsh | Strong. | M | |
| 148 | Cadawg | Welsh | Battle sharp. | M | |
| 149 | Caddell | Welsh | Variant of Cadell: Small battle; spirit of the battle. | M | |
| 150 | Caddoc | Welsh | Battle sharp. | M | |
| 151 | Caddock | Welsh | War-ready; battle sharp. | M | |
| 152 | Cade | Welsh | Diminutive of Cadell: Small battle; spirit of the battle. | M | |
| 153 | Cadel | Welsh | Variant of Cadell: Small battle; spirit of the battle. | M | |
| 154 | Cadell | Welsh | Small battle; spirit of the battle. | M | |
| 155 | Cadellin | Welsh | Legendary father of Gweir. | M | |
| 156 | Caden | Welsh | Spirit of battle. See also Kade. | M | |
| 157 | Cadi | Welsh | Pure. | F | |
| 158 | Cadman | Welsh | Warrior. | M | |
| 159 | Cadmon | Welsh | Warrior. | M | |
| 160 | Cadwalader | Welsh | Variant of Cadwaladr: War leader; battle leader. | M | |