| Name | Meaning | Gender | Origin |
|---|
| Baby | Baby | Unisex | American English |
| Bailey | Bailiff | Male | English |
| Baird | Poet | Male | Gaelic |
| Bambi | Little girl | Female | Italian |
| Barbara | Foreign, strange | Female | Greek |
| Baxter | Baker | Male | English |
| Baylee | Bailiff | Unisex | English |
| Bear | Large mammal with large head, bulky body and coarse thick fur | Unisex | English |
| Becky | To tie | Female | Hebrew |
| Bella | My God is a vow | Female | Hebrew |
| Benjamin | Son of my right hand | Male | Hebrew |
| Benny | Son of my right hand | Male | Hebrew |
| Billy | Will, desire and helmet, protection | Male | Germanic |
| Biscuit | A cookie or cracker | Unisex | English |
| Blair | Plain | Male | Gaelic |
| Blossom | Blossom, flower | Female | English |
| Blue | Blue | Unisex | English |
| Bonnie | Pretty | Female | English |
| Bonsai | The art of growing dwarfed ornamental trees and shrubs. | Unisex | English |
| Brandy | Burning wine | Female | English |
| Brenda | Sword | Female | Norse |
| Brendan | Prince | Male | Gaelic |
| Brian | Noble, strong, virtuous | Male | Gaelic |
| Bridget | The exalted one | Female | Gaelic |
| Bruce | Surname Since Medieval Times: Now A Common Given Name. Folklore Tale Of 14Th Century Robert King Of Scotland: (The Bruce) Who Learned The Value Of Perseverance From Watching A Spider Spin A Web. | Male | English |
| Bubbles | Thin spherical liquid filled with gas. Irrepressible activity. | Unisex | English |
| Buck | He-goat | Male | English |
| Buddy | Herald | Male | English |
| Bugsy | | Unisex | Hebrew |
| Bunny | Little rabbit | Female | English |