| Becan | Irish | Anglicized form of the Gaelic Beaca.. |  |  |
| Bedelia | Irish | An alternate form of Bridget | | |
| Behellagh | Irish | Anglicized form of Baothghalach (fo.. | | |
| Benedict | Irish | Derived from the Latin Benedictus (.. |  | |
| Benen | Irish | Anglicized form of Beanon, the Gael.. |  | |
| Beolagh | Irish | Anglicized form of Baothghalach (fo.. | | |
| Bercan | Irish | Anglicized form of Bearchan (little.. | | |
| Berget | Irish | An alternate form of Bridget | | |
| Bernadette | Irish | A borrowing from the French, Bernad.. |  | |
| Berneen | Irish | Irish feminine form of Bernard (s.. | | |
| Beth | Irish | A short form of Elizabeth (God is m.. | | |
| Bevin | Irish | Anglicized form of the Gaelic Bebhi.. | | |
| Bidelia | Irish | Elaborate variant of Biddy, a pet f.. | | |
| Bidina | Irish | An elaborate variant of Biddy, a pe.. | | |
| Blaine | Irish | Meaning "thin." Socialite Blaine Tr.. | | |
| Blair | Irish | Meaning "field" or "plain." Blair M.. | | |
| Blath | Irish | Derived from blath (flower), | | |
| Blathnaid | Irish | Ancient name derived from blath (fl.. | | |
| Bran | Irish | Popular name derived from the Gaeli.. | | |
| Brandan | Irish | Of uncertain derivation, Brandan mi.. | | |
| Brandubh | Irish | Compound name composed of the Gaeli.. | | |
| Branduff | Irish | Anglicized form of Brandubh (black .. | | |
| Brasil | Irish | Anglicized form of the Gaelic Breas.. | | |
| Breandan | Irish | Evolution of the older Breanainn (p.. | | |
| Breasal | Irish | Evolution of the Old Irish Bressal,.. | | |
| Breck | Irish | Meaning "freckled."
| | |
| Breeda | Irish | Anglicized form of Brighid (strengt.. | | |
| Breena | Irish | Meaning "fairy palace." | | |
| Brenda | Irish | Of uncertain origin and meaning, Br.. | | |
| Brendan | Irish | Anglicized form of Breandan (prince.. | | |
| Bret | Irish | A borrowing from the English, Bret .. | | |
| Brian | Irish | Popular name of uncertain etymology.. | | |
| Briana | Irish | Feminine form of Brian, a popular.. | | |
| Bride | Irish | Anglicized form of Brighid (strengt.. | | |
| Bridget | Irish | Anglicized form of the Gaelic Brigh.. | | |
