| Bratumil | Man | Slavic Names |
| Bratumila | Woman | Slavic Names |
| Brencis | Unisex | Slavic Names |
| Bronia | Woman | Slavic Names |
| Bronislaw | Man | Slavic Names |
| Bronislawa | Woman | Slavic Names |
| Bronka | Woman | Slavic Names |
| Budvilas | Man | Slavic Names |
| Burian | Man | Slavic Names |
| Casimir | Man | Slavic Names |
| Casimira | Woman | Slavic Names |
| Castimir | Man | Slavic Names |
| Caterina | Woman | Slavic Names |
| Charyton | Unisex | Slavic Names |
| Chesna | Woman | Slavic Names |
| Chessa | Woman | Slavic Names |
| Chrysanta | Woman | Slavic Names |
| Chryzant | Man | Slavic Names |
| Damek | Man | Slavic Names |
| Damir | Man | Slavic Names |