| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 101 | Bard | Celtic | Minstrel; a singer-poet. | M | |
| 102 | Barden | Celtic | Minstrel; a singer-poet. | M | |
| 103 | Bardon | Celtic | Minstrel; a singer-poet. | M | |
| 104 | Barra | Celtic | Marksman. | M | |
| 105 | Barry | Celtic | Marksman. | M | |
| 106 | Beacan | Celtic | Small. | M | |
| 107 | Bearacb | Celtic | Marksman. | M | |
| 108 | Bearcban | Celtic | Marksman. | M | |
| 109 | Beatha | Celtic | Life. | F | |
| 110 | Becan | Celtic | Small. | M | |
| 111 | Bedelia | Celtic | A variant of Bridget, who was the mythic Celtic goddess of fire and poetry. | F | |
| 112 | Bedwyr | Celtic | Arthurian legend name. | M | |
| 113 | Bendigeidfran | Celtic | Name of a king. | M | |
| 114 | Berit | Celtic | Splendid. | F | |
| 115 | Berta | Celtic | Splendid. | F | |
| 116 | Betha | Celtic | Life. | F | |
| 117 | Bevan | Celtic | Young soldier. | M | |
| 118 | Bevin | Celtic | Young soldier. | M | |
| 119 | Bevyn | Celtic | Young soldier. | M | |
| 120 | Birgit | Celtic | Splendid or strong. | F | |