| Name | Meaning | Gender | Origin |
|---|
| Bruno | Brown
| Male | |
| Bryan | strong, virtuous, and honorable | Male | English |
| Brycen | Variant of Bryce.
| Male | |
| Buaphuan | | Unisex | Hebrew |
| Bubba | | Male | Hebrew |
| Bubba | | Male | Hebrew |
| Bubbles | Thin spherical liquid filled with gas. Irrepressible activity. | Male | |
| Bubbles | Thin spherical liquid filled with gas. Irrepressible activity. | Male | |
| Bucher | | Unisex | Hebrew |
| Buckwheat | | Unisex | Hebrew |
| Bucky | | Unisex | Hebrew |
| Bucky Katt | | Unisex | Hebrew |
| Buddy | From Budd - The welcome messenger. | Male | English |
| Buddy | From Budd - The welcome messenger. | Male | English |
| Buffy | God's promise | Female | English |
| Buinton | Born fifth
| Male | |
| Bullet | A metal cylinder shot from a rifle or gun. Used to express speed. | Male | |
| Bumhead | | Unisex | Hebrew |
| Bundle Of Joy | | Unisex | Hebrew |
| Bunma | | Unisex | Hebrew |
| Bunmi | My Gift | Unisex | African |
| Bunnell | | Unisex | Hebrew |
| Bunny | little rabbit | Female | Nickname |
| Buppha | | Unisex | Hebrew |
| Burley | Lives At The Caste's Meadow | Unisex | English |