| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 421 | Basil | English | Royal; kingly. | M | |
| 422 | Basile | English | Variant of Basil: Royal; kingly. | M | |
| 423 | Basilio | English | Variant of Basil: Royal; kingly. | M | |
| 424 | Basilios | English | Variant of Basil: Royal; kingly. | M | |
| 425 | Basilius | English | Variant of Basil: Royal; kingly. | M | |
| 426 | Basset | English | Variant of Bassett: Short. | M | |
| 427 | Bassett | English | Short. | M | |
| 428 | Bates | English | Variant of Bartholomew often used as a surname. | M | |
| 429 | Baudier | English | Variant of Balder: Brave warrior; bold army. | M | |
| 430 | Baul | English | Snail. | M | |
| 431 | Bavol | English | Wind. | M | |
| 432 | Bax | English | Baker. | M | |
| 433 | Baxter | English | Baker. | M | |
| 434 | Bay | English | Variant of Bayard auburn-haired. | M | |
| 435 | Bayard | English | Auburn-haired. | M | |
| 436 | Bayarde | English | Variant of Bayard: Brown hair. | M | |
| 437 | Bayhard | English | Reddish brown hair. | M | |
| 438 | Baylee | English | Variant of Bailey: Steward; bailiff. | M | |
| 439 | Baylen | English | Variant of Bayard auburn-haired. | M | |
| 440 | Bayley | English | Steward or public official; man in charge. | M | |