| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 61 | Beacan | Celtic | Small. | M | |
| 62 | Bearacb | Celtic | Marksman. | M | |
| 63 | Bearcban | Celtic | Marksman. | M | |
| 64 | Becan | Celtic | Small. | M | |
| 65 | Bedwyr | Celtic | Arthurian legend name. | M | |
| 66 | Bendigeidfran | Celtic | Name of a king. | M | |
| 67 | Bevan | Celtic | Young soldier. | M | |
| 68 | Bevin | Celtic | Young soldier. | M | |
| 69 | Bevyn | Celtic | Young soldier. | M | |
| 70 | Blaine | Celtic | Slender. | M | |
| 71 | Blainey | Celtic | Slender. | M | |
| 72 | Blair | Celtic | From tbe plain. | M | |
| 73 | Blane | Celtic | Slender. | M | |
| 74 | Blayne | Celtic | Slender. | M | |
| 75 | Blayney | Celtic | Slender. | M | |
| 76 | Boden | Celtic | Blond. | M | |
| 77 | Body | Celtic | Blond. | M | |
| 78 | Bowden | Celtic | Blond. | M | |
| 79 | Bowdyn | Celtic | Blond. | M | |
| 80 | Bowen | Celtic | Son of Owen. | M | |