| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 81 | Bowen | Welsh | Son of Owen. | M | |
| 82 | Brac | Welsh | Free. | M | |
| 83 | Brad | Welsh | Treason. | M | |
| 84 | Bradwen | Welsh | Legendary son of Moren. | M | |
| 85 | Bradwr | Welsh | Traitor. | M | |
| 86 | Braen | Welsh | Corrupt. | M | |
| 87 | Bran | Welsh | Raven. | M | |
| 88 | Brathach | Welsh | Legendary son of Gwawrddur. | M | |
| 89 | Brian | Welsh | Legendary son of Turenn. 'Strong'. | M | |
| 90 | Broderick | Welsh | Son of Roderick. | M | |
| 91 | Brychan | Welsh | Speckled; spotted. | M | |
| 92 | Bryn | Welsh | Hill. Many Welsh place names begin with the word 'Bryn'. | M | |
| 93 | Brynmor | Welsh | Great hill. | M | |
| 94 | Brynn | Welsh | From the hill. | M | |
| 95 | Brys | Welsh | Legendary son of Brysethach. | M | |
| 96 | BwIch | Welsh | Legendary son of Cleddyv Kyvwkh. | M | |
| 97 | Cadarn | Welsh | Strong. | M | |
| 98 | Cadawg | Welsh | Battle sharp. | M | |
| 99 | Caddell | Welsh | Variant of Cadell: Small battle; spirit of the battle. | M | |
| 100 | Caddoc | Welsh | Battle sharp. | M | |