| Barbora | | - | Czech, Slovak, Lithuanian | |
| Bartolomej | | - | Slovak, Croatian (Rare) | |
| BeÁTa | | - | Hungarian, Czech, Slovak | |
| BenjamÍN | | ben-khah-MEEN (Spanish) | Spanish, Czech, Slovak, Icelandic | |
| BlaŽEj | | - | Czech, Slovak | |
| Blanka | | BLAHN-kah (Czech, Slovak, Polish, Croatian), BLAWN-kaw (Hungarian) | Czech, Slovak, Polish, Hungarian, Croatian | |
| BoŽEna | | - | Czech, Slovak, Slovene, Croatian, Serbian | |
| BohumÍR | | - | Czech, Slovak | |
| Bohumil | | - | Czech, Slovak | |
| Bohuslav | | bo-hoo-SLAHV (Ukrainian) | Czech, Slovak, Ukrainian | |
| BraŇKa | | - | Slovak | |
| Branislav | | - | Serbian, Slovak, Czech, Slovene, Croatian, Macedonian | |
| Branislava | | - | Serbian, Slovak, Czech, Slovene | |
| Branko | | - | Serbian, Croatian, Slovene, Slovak, Macedonian | |
| Bronislav | | brah-nee-SLAHF (Russian) | Czech, Slovak, Russian, Medieval Slavic | |