| BŁAŻEj | | BWAH-zhay | Polish | |
| 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, | |
| BartŁOmiej | | bahr-TWAWM-yay | Polish | |
| Bartek | | - | Polish | |
| Bartosz | | BAHR-tawsh | Polish | |
| Basia (1) | | BAH-shah | Polish | |
| Bazyli | | bah-ZI-lee | Polish (Rare) | |
| Beata | | be-AH-tah (Polish, German) | Polish, German, Swedish, Norwegian, Danish, Late Roman | |
| Beatrycze | | be-ah-TRI-che | Polish | |
| Benedykt | | be-NE-dikt | Polish | |
| Benedykta | | be-ne-DIK-tah | Polish | |
| Bernard | | bər-NAHRD (English), BUR-nərd (English), ber-NAHR (French), BER-nahrt (Polish, Croatian) | English, French, Dutch, Polish, Croatian, Slovene, Czech, Ancient Germanic | |
| Berta | | BER-tah (Polish, German, Italian) | Polish, Czech, Hungarian, German, Spanish, Catalan, Italian, Slovene | |
| Bianka | | - | German, Hungarian, Polish | |
| Blanka | | BLAHN-kah (Czech, Slovak, Polish, Croatian), BLAWN-kaw (Hungarian) | Czech, Slovak, Polish, Hungarian, Croatian | |