| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Bloom | [blu:m] | |||
| Blossom | ['blɔsəm] | |||
| BLOSSOM | BLAH-səm | English | ||
| Blount | [blaunt] | |||
| Blue | [blu:] | |||
| BLUMA | BLOO-mah | Yiddish | ||
| Blythe | [blaið] | |||
| BLYTHE | BLIEDH | English (Rare) | ||
| BO (1) | - | Swedish, Danish | ||
| BO (2) | - | Chinese | ||
| BOŘIVOJ | - | Czech | ||
| BOŠKO | - | Serbian, Croatian, Slovene | ||
| BOŠTJAN | - | Slovene | ||
| BOŻENA | baw-ZHE-nah | Polish | ||
| BOŻYDAR | baw-ZHI-dahr | Polish |