| Name | Meaning | Gender | Origin |
|---|
| Austin | Venerated | Male | Latin |
| Avalanche | | Unisex | Hebrew |
| Avery | Elf counsel | Male | English |
| Axe | | Unisex | Hebrew |
| Axel | Father of peace | Male | Hebrew |
| Axle | | Unisex | Hebrew |
| Azure | Sky blue | Unisex | French |
| Baba | Thursday born | Female | African |
| Bacon | | Unisex | Hebrew |
| Badger | Burrowing mammal with white stripe on forehead. Also verb to pester or harass. | Unisex | English |
| Bailey | Bailiff | Male | English |
| Bandit | An outlaw or robber | Unisex | English |
| Bane | Long-Awaited Child | Male | English |
| Barkley | | Unisex | Hebrew |
| Barnaby | Son of consolation | Unisex | Hebrew |
| Barney | Son of consolation | Male | Hebrew |
| Baron | Freeman | Male | Germanic |
| Bart | Son of Talmai | Male | Greek |
| Baxter | Baker | Male | English |
| Bear | Large mammal with large head, bulky body and coarse thick fur | Unisex | English |
| Beau | Handsome | Male | French |
| Beck | Dweller near the brook | Male | English |
| Ben | Son | Male | Hebrew |
| Benny | Son of my right hand | Male | Hebrew |
| Bentley | Bent grass clearing | Male | English |
| Bernard | Bear brave | Male | Germanic |
| Big | Of considerable size. | Unisex | English |
| Biker | | Unisex | Hebrew |
| Billy | Will, desire and helmet, protection | Male | Germanic |
| Bingo | A game where numbers are drawn and announced by a caller | Unisex | English |