| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 101 | Blaine | Gaelic | Thin. | M | |
| 102 | Blair | Gaelic | Child of the fields. | M | |
| 103 | Blane | Gaelic | Variant of Blaine: Thin. | M | |
| 104 | Blayne | Gaelic | Feminine form of Blaine: Thin. | F | |
| 105 | Bofind | Gaelic | White cow. | M | |
| 106 | Boid | Gaelic | Variant of Boyd: Blonde. | M | |
| 107 | Bow | Gaelic | Diminutive of Bowen: Small son. | M | |
| 108 | Bowen | Gaelic | Small son. | M | |
| 109 | Bowie | Gaelic | Blond. Famous Bearer: British pop star David Bowie. | M | |
| 110 | Bowyn | Gaelic | Blond. | M | |
| 111 | Boyd | Gaelic | From the Scottish Gaelic 'buidhe' meaning yellow. Used commonly as a name referring to its owner's blonde hair color. Common as both a first name and a surname in Scotland. | M | |
| 112 | Boyne | Gaelic | White cow. | M | |
| 113 | Boynton | Gaelic | From the white river. | M | |
| 114 | Bradach | Gaelic | Spirited. | M | |
| 115 | Brady | Gaelic | Spirited. | M | |
| 116 | Bram | Gaelic | Raven. | M | |
| 117 | Bramm | Gaelic | Variant of Bram: Raven. | M | |
| 118 | Bran | Gaelic | Variant of Bram: Raven. | M | |
| 119 | Brann | Gaelic | Variant of Bram: Raven. | M | |
| 120 | Breandan | Gaelic | Little raven. | F | |