| Bitasok | - | Indian Name | Bithiah | - | Biblical Name |
| Bithron | - | Biblical Name | Bithynia | - | Biblical Name |
| Bittania | - | Latin Name | Bitten | - | Danish Name |
| Bixenta | - | Basque Name | Bizjothjah | - | Biblical Name |
| Bjorn | - | Norse Name | Blade | - | English Name |
| Blaike | - | English Name | Blaine | - | Muslim Name |
| Blair | - | Irish Name | Blaire | - | Scottish Name |
| Blaise | - | Arthurian Name | Blaize | - | Latin Name |
| Blake | - | Scottish Name | Blakelee | - | English Name |
| Blakeleigh | - | English Name | Blakeley | - | English Name |
| Blakely | - | English Name | Blakesley | - | English Name |
| Blakley | - | English Name | Blanca | - | Italian Name |
| Blanche | - | French Name | Blane | - | Irish Name |
| Blaney | - | Scottish Name | Blanka | - | Polish Name |
| Blastus | - | Biblical Name | Blayke | - | English Name |
| Blayne | - | Scottish Name | Blayre | - | Scottish Name |
| Blayze | - | American Name | Blaze | - | English Name |
| Bleecker | - | Dutch Name | Blerung | - | Anglo Name |
| Bless | - | English Name | Blessie | - | Spanish Name |
| Blessing | - | English Name |
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