| Name | Meaning | Gender | Origin |
|---|
| Becky | The Ensnarer | Female | English |
| Belle | Beautiful woman | Female | Short |
| Bennett | Blessed | Male | English |
| Bentley | from the moor, Farm where the grass bends | Male | English |
| Betsy | Consecrated To God | Female | English |
| Betty | Devoted to God
| Female | English |
| Bigfoot | | Male | Hebrew |
| Billy | resolute protection | Male | English |
| Blaine | thin, lean, source of a river | Male | Irish |
| Blake | fair-haired, pallid | Male | English |
| Blizzard | Violent snowstorm | Male | |
| Blue | A colour between green and indigo. Gloomy or depressed. | Male | Color |
| Bo | Nickname made popular by actress Bo Derek.
| Male | Norse |
| Bob | bright, famous | Male | English |
| Bobby | bright fame | Male | English |
| Bocephus | | Unisex | Hebrew |
| Bogeyman | | Unisex | Hebrew |
| Bones | after doctor in Star Trek | Unisex | |
| Bonnie | sweet and good | Female | Scottish |
| Boo | | Male | Hebrew |
| Boo | | Male | Hebrew |
| Boo | | Male | Hebrew |
| Boo | | Male | Hebrew |
| Booger | | Unisex | Hebrew |
| Boozer | Excessive alcoholic drinker | Unisex | |