| Name | Meaning | Gender | Origin |
|---|
| Basil | Majestic, royal, brave | Male | Greek |
| Beans | Seeds of a plant e.g.. coffee beans. Also energetic - "Full of beans". | Male | |
| Beast | | Unisex | Hebrew |
| Bell | ringer of the bell | Male | English |
| Bella | Beautiful
| Female | English |
| Bella | Beautiful
| Female | English |
| Belle | Beautiful woman | Female | Short |
| Berlioz | after a kitten in the movie Aristocats | Male | |
| Betty | Devoted to God
| Female | English |
| Big Mama | | Unisex | Hebrew |
| Bigglesworth | | Unisex | Hebrew |
| Blu | | Unisex | Hebrew |
| Blu | | Unisex | Hebrew |
| Blue | A colour between green and indigo. Gloomy or depressed. | Male | Color |
| Bonnie | sweet and good | Female | Scottish |
| Boo | | Male | Hebrew |
| Boo | | Male | Hebrew |
| Boo | | Male | Hebrew |
| Boo | | Male | Hebrew |
| Buddy | From Budd - The welcome messenger. | Male | English |
| Buddy | From Budd - The welcome messenger. | Male | English |
| Buffy | God's promise | Female | English |
| Butch | Masculine in appearance or manner. | Male | Nickname |
| Carla | Manly | Female | Italian |
| Carrie | Abbreviation of Carol and Caroline from the masculine Charles meaning manly
| Female | English |