| Name | Meaning | Gender | Origin |
|---|
| Bello | Spanisch for Beautiful | Male | Italian |
| Belvedere | after a freeway exit in Marin County, CA | Male | Italian |
| Ben | . | Male | Hebrew |
| Ben Hur | | Unisex | Hebrew |
| Benedict | Blessed | Male | English |
| Benjamin | son of my right hand | Male | Hebrew |
| Benny | Blessed Son Of My Right Hand | Unisex | English |
| Beowulf | Intelligent Wolf | Unisex | Anglo-Saxon |
| Bert | English, noble, bright | Male | English |
| Beta | Dedicated To God | Female | Czechoslovakian |
| Bijou | French for jewel | Female | |
| Bird | Bird | Male | English |
| Birdie | bird | Female | English |
| Bitty | Very small. Composed of fragments. | Unisex | |
| Black Cat | | Unisex | Hebrew |
| Blanca | white | Female | Spanish |
| 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 |
| Bo | Nickname made popular by actress Bo Derek.
| Male | Norse |
| Bogie | | Male | Hebrew |
| Bonkers | | Unisex | Hebrew |
| Boo | | Male | Hebrew |
| Boo | | Male | Hebrew |
| Boo | | Male | Hebrew |
| Boo | | Male | Hebrew |
| BooBoo | | Unisex | Hebrew |