| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 261 | Bettine | French | A form of Elizabeth. | F | |
| 262 | Bevis | French | Handsome face. Also 'from Beauvais'. | M | |
| 263 | Birk | French | Variant of Burke: Lives in a fortress. | M | |
| 264 | Birke | French | Variant of Burke: Lives in a fortress. | M | |
| 265 | Blais | French | Lisp, stutter. | M | |
| 266 | Blaisdell | French | Lisp, stutter. | M | |
| 267 | Blaise | French | Lisp; stutter. Famous bearer: Blaise Pascal, a brilliant seventeenth century child prodigy; mathematician; scientist and philosopher who invented the calculating machine and hydraulic press before dying at age thirty-nine. | M | |
| 268 | Blaize | French | Lisp, stutter. | M | |
| 269 | Blanch | French | White. | F | |
| 270 | Blanche | French | White; shining. | F | |
| 271 | Blanchefleur | French | White flower. | F | |
| 272 | Blase | French | Lisp, stutter. | M | |
| 273 | Blayze | French | Lisp, stutter. | M | |
| 274 | Blaze | French | Lisp, stutter. | M | |
| 275 | Blondell | French | Fair-haired; blonde. Variant of the Spanish Blandina meaning flattering. | F | |
| 276 | Blondelle | French | Fair-haired; blonde. Variant of the Spanish Blandina meaning flattering. | F | |
| 277 | Blondene | French | Fair-haired; blonde. Variant of the Spanish Blandina meaning flattering. | F | |
| 278 | Bo | French | Diminutive of Beauregard: Respected; regarded highly (literal translation is Beautiful/handsome gaze). Also a variant of Beau: Handsome. | M | |
| 279 | Boden | French | He who delivers the news. | M | |
| 280 | Bodin | French | Variant of Boden: He who delivers the news. | M | |