| Blanche | - | French Name | Blanda | - | Swiss 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 | Blaženka | - | Serbian Name |
| Bleecker | - | Dutch Name | Blerung | - | Anglo Name |
| Bless | - | English Name | Blessie | - | Spanish Name |
| Blessing | - | United States Name | Bleu | - | French Name |
| Bliant | - | Arthurian Name | Blima | - | Yiddish Name |
| Bliss | - | United States Name | Blossom | - | English Name |
| Blu | - | English Name | Blue | - | American Name |
| Bluebell | - | English Name | Bluma | - | Yiddish Name |
| Blume | - | Yiddish Name | Bly | - | American Name |
| Blythe | - | Anglo Name | Blythe | - | English Name |
| Bo | - | Slavic Name | Bo | - | Chinese Name |
| Bo Gum | - | Korean Name | Bo Kyung | - | Korean Name |
| Bo Mi | - | Korean Name | Bo Ra | - | Korean Name |
| Bo Ram | - | Korean Name | Boadicea | - | Anglo Name |
| Boanerges | - | Biblical Name |
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