| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 221 | Bohannon | Irish | Son of Owen. | M | |
| 222 | Boine | Irish | Variant of Boyne: White cow. | M | |
| 223 | Bowie | Irish | Surname. | M | |
| 224 | Boyn | Irish | Variant of Boyne: White cow. | M | |
| 225 | Boyne | Irish | White cow. | M | |
| 226 | Boynton | Irish | From the town by the river Boyn. | M | |
| 227 | Bradaigh | Irish | Spirited. | M | |
| 228 | Braddon | Irish | Broad hillside. | M | |
| 229 | Braden | Irish | Broad hillside. | M | |
| 230 | Bradon | Irish | Broad hillside. | M | |
| 231 | Brady | Irish | Spirited; Broad. | M | |
| 232 | Braeden | Irish | Broad hillside. | M | |
| 233 | Braedon | Irish | Broad hillside. | M | |
| 234 | Bram | Irish | Irish form of Abraham. | M | |
| 235 | Brandan | Irish | Variant of Brendan: Prince, or brave. Some scholars believe Brendan means 'stinking hair'. | M | |
| 236 | Brandon | Irish | Variant of Brendan: Prince, or brave. Some scholars believe Brendan means 'stinking hair'. | M | |
| 237 | Brandubh | Irish | Black raven. | M | |
| 238 | Branduff | Irish | Black raven. | M | |
| 239 | Branigan | Irish | Surname. | M | |
| 240 | Brann | Irish | Raven. | F | |