| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Bartolomeu | - | Portuguese, Galician | ||
| Bartosz | BAHR-tawsh | Polish | ||
| Basajaun | - | Basque | ||
| Basia (1) | BAH-shah | Polish | ||
| Basil (1) | BAZ-əl | English | ||
| Basilio | bah-ZEE-lyo (Italian), bah-SEE-lyo (Spanish) | Italian, Spanish | ||
| Batari | - | Indonesian | ||
| Bate | - | Medieval English | ||
| Batraz | - | Ossetian, Caucasian Mythology | ||
| Baudelio | - | Spanish | ||
| Bautista | bow-TEES-tah | Spanish | ||
| Baxter | BAKS-tər | English | ||
| Baylee | BAY-lee | English (Modern) | ||
| Bayram | - | Turkish | ||
| Baz | BAZ | English (British) |