| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 81 | Boyne | Gaelic | White cow. | M | |
| 82 | Boynton | Gaelic | From the white river. | M | |
| 83 | Bradach | Gaelic | Spirited. | M | |
| 84 | Brady | Gaelic | Spirited. | M | |
| 85 | Bram | Gaelic | Raven. | M | |
| 86 | Bramm | Gaelic | Variant of Bram: Raven. | M | |
| 87 | Bran | Gaelic | Variant of Bram: Raven. | M | |
| 88 | Brann | Gaelic | Variant of Bram: Raven. | M | |
| 89 | Breandan | Gaelic | Brave. | M | |
| 90 | Breck | Gaelic | Freckled. | M | |
| 91 | Brendan | Gaelic | Brave. | M | |
| 92 | Brendon | Gaelic | Brave. | M | |
| 93 | Brennan | Gaelic | Brave. | M | |
| 94 | Brexton | Gaelic | Freckled. | M | |
| 95 | Brothaigh | Gaelic | From Brodie. | M | |
| 96 | Brus | Gaelic | From Bruys. | M | |
| 97 | Buadhachan | Gaelic | Victorious. | M | |
| 98 | Buidhe | Gaelic | Blond. | M | |
| 99 | Caelan | Gaelic | Contemporary variant of Cailean 'Child.'. | M | |
| 100 | Cailean | Gaelic | Young dog, or child. Scottish Gaelic. | M | |