| Name | Meaning | Gender | Origin |
|---|
| Baby | Baby | Unisex | American English |
| Bailey | Bailiff | Male | English |
| Bali | On the contrary | Male | Swahili |
| Bambi | Little girl | Female | Italian |
| Baruch | Blessed | Male | Hebrew |
| Bear | Large mammal with large head, bulky body and coarse thick fur | Unisex | English |
| Bella | My God is a vow | Female | Hebrew |
| Benjamin | Son of my right hand | Male | Hebrew |
| Billy | Will, desire and helmet, protection | Male | Germanic |
| Bingo | A game where numbers are drawn and announced by a caller | Unisex | English |
| Birch | Birch | Male | English |
| Blues | | Unisex | Hebrew |
| Bob | Bright fame | Male | Germanic |
| Bonnie | Pretty | Female | English |
| Bonsai | The art of growing dwarfed ornamental trees and shrubs. | Unisex | English |
| Boris | Battle, fight | Male | Slavonic |
| Brandon | Broom hill | Male | English |
| Brandy | Burning wine | Female | English |
| Brenda | Sword | Female | Norse |
| Brooklyn | Uncertain, perhaps broken land | Unisex | Dutch |
| Buddy | Herald | Male | English |
| Bugsy | | Unisex | Hebrew |
| Bunny | Little rabbit | Female | English |
| Burton | Fort town | Male | English |
| Buster | One that breaks up something | Unisex | American English |
| Butch | Masculine in appearance or manner. | Unisex | American English |
| Butter | | Unisex | Hebrew |
| Buttercup | A bright yellow flowered plant. Also a term of endearment. | Unisex | English |
| Buzz | To move quickly and busily, to bustle | Male | English |
| Byron | At the cattle sheds | Male | English |