| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Blanca | BLAHN-kah | Spanish | ||
| Blanchard | - | Ancient Germanic | ||
| Blandina | - | Ancient Roman | ||
| Blandinus | - | Ancient Roman | ||
| Blandus | - | Ancient Roman | ||
| Blanka | BLAHN-kah (Czech, Slovak, Polish, Croatian), BLAWN-kaw (Hungarian) | Czech, Slovak, Polish, Hungarian, Croatian | ||
| Blas | BLAHS | Spanish | ||
| Blasius | - | Ancient Roman | ||
| Blazhe | - | Macedonian | ||
| Blerta | BLER-tah | Albanian | ||
| Bo (1) | - | Swedish, Danish | ||
| BoŠKo | - | Serbian, Croatian, Slovene | ||
| BoŽA | - | Serbian | ||
| BoŽEna | - | Czech, Slovak, Slovene, Croatian, Serbian | ||
| BoŽIca | - | Croatian |