| Name | Meaning | Gender | Origin |
|---|
| Ava | Cute and short girl kitten name.
| Female | Latin |
| Baggins | | Male | Hebrew |
| Baguette | | Unisex | Hebrew |
| Baldrick | Princely ruler. | Male | |
| Bane | A centaur.
| Male | |
| Banshee | Female fairy spirit from Irish Gaelic folklore. | Unisex | |
| Barnabas | so named for Barnabas Collins of Dark Shadows | Male | Aramaic |
| Bathilda Bagshot | Author of A History of Magic.
| Female | |
| Beau | Handsome.
| Male | |
| Beauty | One that is beautiful, especially a woman | Female | |
| Bedwyr | Arthurian legend name
| Male | |
| Beelzebub | Bee EL zah BUB | Unisex | |
| Beethoven | | Male | Hebrew |
| Bela | named after Bela Lugosi and pronounced: BAY-la | Male | Czech |
| Bella | Beautiful
| Female | English |
| Bella | Beautiful
| Female | English |
| Belle | Beautiful woman | Female | Short |
| Bilbo Baggins | One of the hobbits in J.R. Tolkien's novels.
| Male | |
| Billie | Determination: strength. A nickname for William.
| Female | English |
| Bing | From the kettle shaped hollow
| Male | |
| Biscuit | A cookie or cracker | Unisex | |
| Blackout | | Unisex | Hebrew |
| Blade | glory, The expanded part of a leaf, particularly grasses | Male | Word |
| Bluebeard | | Unisex | Hebrew |
| Bo | Nickname made popular by actress Bo Derek.
| Male | Norse |