B
| Bailey |
| Bailie |
| Baillie |
| Bain |
| Barkley |
| Barnaby |
| Barney |
| Barra |
| Barry |
| Bartosz |
| Bear |
| Beau |
| Ben |
| Benas |
| Benediktas |
| Benen |
| Benjamin |
| Bentley |
| Bernard |
| Bertie |
| Bilal |
| Billy |
| Blaine |
| Blair |
| Blaize |
| Blake |
| Blaze |
| Blazej |
| Bob |
| Bobbie |
| Bobby |
| Bobby-ray |
| Bode |
| Bodhi |
| Bodi |
| Boen-rua |
| Boris |
| Bowen |
| Boyd |
| Bradain |
| Bradan |
| Braden |
| Bradley |
| Brady |
| Braedan |
| Braeden |
| Braedon |
| Brajan |
| Branan |
| Branann |
| Brandan |
| Brandon |
| Brandon-lee |
| Braodhan |
| Braxton |
| Brayden |
| Breandan |
| Brenainn |
| Brendan |
| Brennin |
| Brent |
| Brett |
| Brian |
| Brodey |
| Brodie |
| Brody |
| Brogan |
| Brooklyn |
| Bruce |
| Bruno |
| Bryan |
| Bryce |
| Bryn |
| Byron |