| Name | Meaning | Gender | Origin |
|---|
| Blathma | Flower | Male | Irish |
| Blathnaid | Flower | Female | Irish |
| Blayne | Slender | Male | Celtic |
| Blayney | Slender | Male | Celtic |
| Blayze | 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 | French |
| Blaze | Stutters | Male | English |
| Bleecker | Bleacher Of Cloth | Male | Dutch |
| Bleoberis | Meaning Unknown | Male | Arthurian |
| Blerung | Blessing | Female | Anglo |
| Blessing | Consecrated | Female | English |
| Bletsung | Consecrated | Female | English |
| Blian | Thin | Male | Irish |
| Bliant | Healer | Male | Arthurian |
| Bliss | "Happy." | Female | Anglo |
| Blisse | Joy: Cheer. Used From Medieval Times. | Female | English |
| Blithe | Cheerful | Female | English |
| Bliths | Joy | Female | English |
| Blondell | Fair-Haired: Blonde. Variation Of The Spanish Blandina Meaning Flattering. | Female | English |
| Blondelle | Fair-Haired: Blonde. Variation Of The Spanish Blandina Meaning Flattering. | Female | English |
| Blondene | Fair-Haired: Blonde. Variation Of The Spanish Blandina Meaning Flattering. | Female | English |
| Blossom | Fresh | Female | English |
| Blostm | Fresh | Female | English |
| Bluinse | White | Female | Irish |
| Bly | Tall | Female | Native American |
| Blyana | Strong | Female | Irish |
| Blyss | Joy: Cheer. Used From Medieval Times. | Female | English |
| Blysse | Joy: Cheer. Used From Medieval Times. | Female | English |
| Blyth | Merry | Male | English |
| Blythe | Happy | Female | Anglo |
| Bocleah | Lives At The Buck Meadow | Male | English |