| Bloem | Woman | Dutch Names |
| Blondelle | Woman | American Names |
| Blossom | Woman | English Names |
| Blue | Unisex | American Names |
| Bluebell | Woman | English Names |
| Blues | Unisex | American Names |
| Bluesy | Unisex | American Names |
| Bluma | Woman | Hebrew Names |
| Blush | Unisex | English Names |
| Bly | Woman | English Names |
| Blythe | Woman | English Names |
| Bo | Man | Slavic Names |
| Boadicea | Woman | Latin Names |
| Boaz | Man | Hebrew Names |
| Bob | Man | English Names |
| Bobby | Unisex | American Names |
| Bode | Man | German Names |
| Boden | Man | Scandinavian Names |
| Bodhi | Unisex | Indian Names |
| Bodhika | Woman | Indian Names |