Irish surnames

O'Brien, Murphy, Kelly

Irish surnames typically begin with O' (meaning "grandson of") or Mc/Mac (meaning "son of"), reflecting Gaelic patronymic traditions: O'Brien, McCarthy, MacDonald.

Many were anglicized during British rule, obscuring their origins—Ó Súilleabháin became Sullivan, Ó Murchadha became Murphy.

Common Irish surnames like Kelly, Ryan, and Walsh now appear throughout the English-speaking world due to emigration.

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Murphy · O'Neill · family crest · family name · genealogy · parish records · old country · Cork · Byrne · Patronymic · Kelly · Heraldry · Gaelic roots · diaspora · Kerry · Gallagher · last name · Fitzpatrick

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