| Aureliano | | ow-re-LYAH-no (Spanish) | Spanish, Italian | |
| Aurelio | | ow-RE-lyo | Italian, Spanish | |
| Aurora | | ow-RO-rah (Spanish), ə-RAWR-ə (English), OW-ro-rah (Finnish) | Italian, Spanish, Portuguese, English, German, Romanian, Finnish, Roman Mythology | |
| Azzurra | | ahd-DZOOR-rah | Italian | |
| Balbina | | bahl-BEE-nah (Italian) | Spanish (Rare), Portuguese (Rare), Italian (Rare), Ancient Roman | |
| Balbino | | - | Spanish (Rare), Portuguese (Rare), Italian (Rare) | |
| Baldassare | | - | Italian | |
| Baldo | | - | Italian, Spanish, Ancient Germanic | |
| Baldovino | | - | Italian | |
| 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, | |
| Bartolo | | - | Italian | |
| Bartolomeo | | - | Italian | |
| Basilio | | bah-ZEE-lyo (Italian), bah-SEE-lyo (Spanish) | Italian, Spanish | |
| Battista | | baht-TEE-stah | Italian | |
| Beatrice | | be-ah-TREE-che (Italian), BEE-ə-tris (English), BEE-tris (English), BE-ah-trees (Swedish), be-ah-TREES (Swedish) | Italian, English, Swedish | |