| Barbara | | BAHR-bər-ə (English), BAHR-brə (English), BAHR-bah-rah (German), bahr-BAH-rah (Polish) | English, Italian, French, German, Polish, Hungarian, Slovene, Croatian, Swedish, Danish, Norwegian, | |
| Bernard | | bər-NAHRD (English), BUR-nərd (English), ber-NAHR (French), BER-nahrt (Polish, Croatian) | English, French, Dutch, Polish, Croatian, Slovene, Czech, Ancient Germanic | |
| Bernarda | | - | Slovene, Croatian, Spanish | |
| Berta | | BER-tah (Polish, German, Italian) | Polish, Czech, Hungarian, German, Spanish, Catalan, Italian, Slovene | |
| BlaŽ | | - | Slovene, Croatian | |
| BoŠKo | | - | Serbian, Croatian, Slovene | |
| BoŠTjan | | - | Slovene | |
| BoŽEna | | - | Czech, Slovak, Slovene, Croatian, Serbian | |
| BoŽIdar | | - | Serbian, Croatian, Slovene | |
| BoŽO | | BO-zho | Croatian, Serbian, Slovene | |
| Bogdan | | BAWG-dahn (Polish), BOG-dahn (Serbian, Croatian), bog-DAHN (Romanian) | Polish, Russian, Slovene, Bulgarian, Serbian, Croatian, Macedonian, Romanian, Medieval Slavic | |
| Bogdana | | bawg-DAH-nah (Polish) | Polish, Russian, Slovene, Bulgarian, Serbian, Macedonian, Romanian, Medieval Slavic | |
| Bogomir | | - | Slovene | |
| Bojan | | BO-yahn (Serbian, Croatian, Macedonian) | Serbian, Croatian, Slovene, Macedonian | |
| Bojana | | - | Slovene, Macedonian, Serbian, Croatian | |