| Benedito | | - | Portuguese | |
| Benigna | | - | Spanish, Italian, Portuguese, Late Roman | |
| Benigno | | - | Italian, Spanish, Portuguese | |
| Benjamim | | - | Portuguese | |
| Bento | | - | Portuguese | |
| Bernardino | | ber-nahr-DEE-no (Italian, Spanish) | Italian, Spanish, Portuguese | |
| Bernardo | | ber-NAHR-do (Italian, Spanish) | Italian, Spanish, Portuguese | |
| Bia | | - | Portuguese | |
| Bonifacio | | bo-nee-FAH-cho (Italian), bo-nee-FAH-thyo (Spanish), bo-nee-FAH-syo (Latin American Spanish) | Italian, Spanish, Portuguese | |
| BrÁS | | - | Portuguese | |
| BrÍGida | | - | Portuguese | |
| Branca | | BRAN-ka (Galician) | Portuguese, Galician | |
| Breno | | - | Portuguese | |
| Bruna | | - | Italian, Portuguese, Croatian | |
| Brunilda | | broo-NEEL-dah (Spanish) | Spanish, Italian, Portuguese | |