| Name | Meaning | Gender | Origin |
|---|
| Baird | Poet | Male | Gaelic |
| Baker | A baker | Male | English |
| Bandit | An outlaw or robber | Unisex | English |
| Baron | Freeman | Male | Germanic |
| Baruch | Blessed | Male | Hebrew |
| Bat | Strong | Male | Mongolian |
| Baxter | Baker | Male | English |
| Bear | Large mammal with large head, bulky body and coarse thick fur | Unisex | English |
| Beast | | Unisex | Hebrew |
| Beau | Handsome | Male | French |
| Beauty | One that is beautiful, especially a woman | Unisex | English |
| Ben | Son | Male | Hebrew |
| Blackberry | Prickly shrub with small edible berries | Unisex | English |
| Blackie | Of the colour black. | Unisex | English |
| Blackjack | A leather covered hand weapon. A card game | Unisex | English |
| Blade | Wealthy Glory | Male | English |
| Blake | Dark | Male | English |
| Bluto | | Unisex | Hebrew |
| Bobby | Bright fame | Unisex | Germanic |
| Bogart | Orchard | Male | German |
| Boots | | Unisex | Hebrew |
| Boris | Battle, fight | Male | Slavonic |
| Bran | Raven | Male | Welsh |
| Brandon | Broom hill | Male | English |
| Bronson | Brown's son | Male | English |
| Brooklyn | Uncertain, perhaps broken land | Unisex | Dutch |
| Brownie | Moist chocolate cake with nuts | Unisex | English |
| Bruno | Armour | Male | Germanic |
| Bubba | | Unisex | Hebrew |
| Bubble | | Unisex | Hebrew |