| Name | Meaning | Gender | Origin |
|---|
| Bear | Large mammal with large head, bulky body and coarse thick fur | Unisex | English |
| Bebe | Baby | Male | English |
| Benjamin | Son of my right hand | Male | Hebrew |
| Bernard | Bear brave | Male | Germanic |
| Billy | Will, desire and helmet, protection | Male | Germanic |
| Bingo | A game where numbers are drawn and announced by a caller | Unisex | English |
| Biscuit | A cookie or cracker | Unisex | English |
| Bisto | | Unisex | Hebrew |
| Blackie | Of the colour black. | Unisex | English |
| Blake | Dark | Male | English |
| Blakeley | From The Dark Meadow | Unisex | English |
| Blaze | Stuttering | Unisex | Latin |
| Blondie | Pale yellowish-brown | Unisex | French |
| Blue | Blue | Unisex | English |
| Bobby | Bright fame | Unisex | Germanic |
| Booboo | | Unisex | Hebrew |
| Booger | | Unisex | Hebrew |
| Boots | | Unisex | Hebrew |
| Bradley | Broad wood | Male | English |
| Brandon | Broom hill | Male | English |
| Braxton | Bracc's settlement | Male | English |
| Brent | Burnt | Male | English |
| Brett | A Breton | Male | English |
| Brody | Muddy place | Male | Gaelic |
| Bromley | Broom hill | Male | English |
| Brooke | A brook, stream | Unisex | English |
| Brownie | Moist chocolate cake with nuts | Unisex | English |
| Bruce | Surname Since Medieval Times: Now A Common Given Name. Folklore Tale Of 14Th Century Robert King Of Scotland: (The Bruce) Who Learned The Value Of Perseverance From Watching A Spider Spin A Web. | Male | English |
| Bryce | Son Of A Nobleman | Male | French |
| Bubbles | Thin spherical liquid filled with gas. Irrepressible activity. | Unisex | English |