| Name | Meaning | Gender | Origin |
|---|
| Blaise | to lisp, stammer | Male | |
| Blake | fair-haired, pallid | Male | English |
| Blaze | Lisp: stutter. Blaise Pascal was a brilliant seventeenth century child prodigy: mathematician: scientist and philosopher who invented the calculating machine and hydraulic press before dying at age thirty-nine.
| Male | Latin |
| Bo | Nickname made popular by actress Bo Derek.
| Male | Norse |
| Bobby | bright fame | Male | English |
| Bodhi | awakening, enlightenment | Male | Sanskrit |
| Boston | | Male | Hebrew |
| Bowen | Son of Owen
| Male | Welsh |
| Bradley | broad meadow | Male | English |
| Brady | large-chested | Male | Irish |
| Braxton | Brock's settlement | Male | English |
| Brayden | brave, broad | Male | Spelling |
| Bree | broth | Female | Irish |
| Brenda | fiery hill, sword-blade | Female | Celtic |
| Brendan | prince | Male | Irish |
| Brendon | Prince | Unisex | English |
| Brenna | Raven maid, dark-haired | Female | Irish |
| Brennan | Little drop: Prince. Variant of Brendan.
| Male | Irish |
| Brett | a native of Brittany, Briton | Male | Celtic |
| Brian | strong | Male | Irish |
| Briana | She ascends. Feminine of Brian.
| Female | Feminine |
| Brianna | She ascends. Feminine of Brian.
| Female | Feminine |
| Brice | swift, quick-moving, son of Rice | Male | Scottish |
| Bridger | lives near the bridge | Male | English |
| Bridget | Strength. Mythological Celtic goddess of fire and poetry.
| Female | Anglicized |