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O'Byrne Genealogy and O'Byrne Family History Information

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About the O'Byrne surname

O'Byrne is an Irish surname. It is derived from the Irish: Ó Broin and are descendants of Bran mac Máelmórda, King of Leinster. noted family members; Fiach McHugh O'Byrne, Gaelic chieftain famed for his resistance to English rule in Ireland. Felim McFiach O'Byrne son of Fiach above last rulling chieftain of clan O'Byrne Gay Byrne John O'Byrne Attorney General of the Irish free state.