| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 61 | Baeddan | Welsh | Boar. | M | |
| 62 | Banys | Welsh | Son of Harry. | M | |
| 63 | Barris | Welsh | Son of Harry. | M | |
| 64 | Beavan | Welsh | Variant of Bevan: Evan's son. | M | |
| 65 | Beaven | Welsh | Variant of Bevan: Evan's son. | M | |
| 66 | Beda | Welsh | Welsh form of Bede: name of a priest. | M | |
| 67 | Bedwyr | Welsh | Legendary son of Pedrawd. | M | |
| 68 | Bedyw | Welsh | Legendary son of Seithved. | M | |
| 69 | Beli Mawr | Welsh | Legendary brother in law of the Virgin Mary. | M | |
| 70 | Bendigeidfran | Welsh | Blessed raven. | M | |
| 71 | Berth | Welsh | Legendary son of Cadwy. | M | |
| 72 | Berwyn | Welsh | White hair. Legendary son of Kerenhyr. | M | |
| 73 | Bevan | Welsh | Evan's son. | M | |
| 74 | Beven | Welsh | Youthful. | M | |
| 75 | Bevin | Welsh | Youthful. | M | |
| 76 | Bevon | Welsh | Variant of Bevan: Evan's son. | M | |
| 77 | Bevyn | Welsh | Youthful. | M | |
| 78 | Blathaon | Welsh | Legendary son of Mwrheth. | M | |
| 79 | Bleddyn | Welsh | Wolf hero. | M | |
| 80 | Bleidd | Welsh | Wolf. | M | |