| Name | Meaning | Gender | Origin |
|---|
| Ben | . | Male | Hebrew |
| Benji | after the movie | Unisex | |
| Bentley | from the moor, Farm where the grass bends | Male | English |
| Billabong | | Unisex | Hebrew |
| Billy | resolute protection | Male | English |
| Blackie | Of the colour black. | Unisex | |
| Blacky | | Male | Hebrew |
| Blaze | 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 | Latin |
| Blotch | | Unisex | Hebrew |
| Blotto | | Unisex | Hebrew |
| Blue | A colour between green and indigo. Gloomy or depressed. | Male | Color |
| Bluey | | Unisex | Hebrew |
| Bo | Nickname made popular by actress Bo Derek.
| Male | Norse |
| Bobby | bright fame | Male | English |
| Bobo | | Male | Hebrew |
| Bonnie | sweet and good | Female | Scottish |
| Bonza | | Unisex | Hebrew |
| Boomer | A large full grown kangaroo. A baby boomer. | Unisex | |
| Boots | | Male | Hebrew |
| Bootsie | Collins Pussycat | Unisex | |
| Boozer | Excessive alcoholic drinker | Unisex | |
| Brandy | An alcoholic liquor distilled from wine | Female | Dutch |
| Bronson | son of Brown, son of the dark-skinned one | Male | English |
| Bruce | thicket, woodlands | Male | Scottish |
| Buddy | From Budd - The welcome messenger. | Male | English |