| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 181 | Beacan | Irish | Small. | M | |
| 182 | Beag | Irish | Variant of Beacan: Small. | M | |
| 183 | Beamard | Irish | Brave as a bear. | M | |
| 184 | Beanon | Irish | Good. | M | |
| 185 | Bearach | Irish | Spearlike. | M | |
| 186 | Bearchan | Irish | Variant of Bearach: Spearlike. | M | |
| 187 | Beartlaidh | Irish | From Bart's meadow. | M | |
| 188 | Bebhinn | Irish | Singer. | F | |
| 189 | Bec | Irish | Diminutive of Beacan: Small. | M | |
| 190 | Becan | Irish | Variant of Beacan: Small. | M | |
| 191 | Bedelia | Irish | A variant of Bridget, meaning the high one or strength. Famous bearer: 6th century Irish abbess Brigid )known as St Bridget or St Bride) founded Ireland's first women's religious community. | F | |
| 192 | Behellagh | Irish | Variant of Baothghalach: Foolish pride. | M | |
| 193 | Beinean | Irish | Variant of Beanon: Good. | M | |
| 194 | Beineon | Irish | Variant of Beanon: Good. | M | |
| 195 | Beircheart | Irish | Shining army. | M | |
| 196 | Benen | Irish | Kind. | M | |
| 197 | Beolagh | Irish | Foolish pride. | M | |
| 198 | Bercnan | Irish | Variant of Bearach: Spearlike. | M | |
| 199 | Bergin | Irish | Variant of Bearach: Spearlike. | M | |
| 200 | Berk | Irish | The birch tree meadow. Also see Barclay and Burke. | M | |