| Name | Meaning | Gender | Origin |
|---|
| Beatrice | blessed; she who brings happiness | Female | Latin |
| Becky | The Ensnarer | Female | English |
| Bella | Beautiful
| Female | English |
| Bella | Beautiful
| Female | English |
| Belle | Beautiful woman | Female | Short |
| Bertha | Bright | Female | German |
| Bess | Diminutive of Elizabeth.
| Female | English |
| Bette | Consecrated To God | Female | English |
| Black | Dark | Male | English |
| Blanche | white | Female | |
| Blossom | lovely, A flower or cluster of flowers | Female | English |
| Bluebird | | Unisex | Hebrew |
| Boom | | Unisex | Hebrew |
| Boom | | Unisex | Hebrew |
| Bounty | | Unisex | Hebrew |
| Brandy | An alcoholic liquor distilled from wine | Female | Dutch |
| Brenda | fiery hill, sword-blade | Female | Celtic |
| Brett | a native of Brittany, Briton | Male | Celtic |
| Brunhilda | Dark or noble
| Female | Norse |
| Bubbles | Thin spherical liquid filled with gas. Irrepressible activity. | Male | |
| Bubbles | Thin spherical liquid filled with gas. Irrepressible activity. | Male | |
| Buff | | Male | Hebrew |
| Bumblebee | | Unisex | |
| Buttercup | A bright yellow flowered plant. Also a term of endearment. | Female | |
| Callisto | A satellite of the planet Jupiter. | Unisex | |