| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Botros | - | Arabic, Coptic | ||
| Boudewijn | BOW-də-vien, BOW-də-wien | Dutch | ||
| Boudicca | BOO-di-kə (English) | Ancient Celtic | ||
| Boulos | - | Arabic | ||
| Boutros | - | Arabic, Coptic | ||
| Boyd | BOID (English) | Scottish, English | ||
| Bozhena | - | Medieval Slavic | ||
| Bozhidar | - | Bulgarian, Macedonian, Medieval Slavic | ||
| Bozho | - | Medieval Slavic | ||
| BrÉAnainn | - | Ancient Irish | ||
| BrÜNhild | BRUYN-hilt (German) | German, Germanic Mythology | ||
| Braam | BRAHM | Dutch, Limburgish | ||
| BradÁN | - | Ancient Irish | ||
| Brais | BRIES | Galician | ||
| Bram | BRAHM | English, Dutch |