| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| BOYKO | - | Bulgarian | ||
| Boyle | [bɔil] | |||
| Boyles | [bɔilz] | |||
| BOZHENA | - | Medieval Slavic | ||
| BOZHIDAR | - | Bulgarian, Macedonian, Medieval Slavic | ||
| BOZHIDARA | - | Bulgarian | ||
| BOZHO | - | Medieval Slavic | ||
| BRÁDACH | - | Irish | ||
| BRÁS | - | Portuguese | ||
| BRÂN | BRAHN | Welsh Mythology | ||
| BRÂNDUȘA | - | Romanian | ||
| BRÉANAINN | - | Ancient Irish | ||
| BRÍD | - | Irish | ||
| BRÍGH | BREE | Irish | ||
| BRÍGIDA | - | Portuguese |