Irish Last Names
Common Irish surnames with their meanings, origins and type — patronymic, occupational, toponymic or descriptive.
patronymic
Boyle
Descendant of Baoghal · Irish
patronymic Brennan
Descendant of Braonán · Irish
patronymic Byrne
Descendant of Bran (raven) · Irish
patronymic Callaghan
Descendant of the bright-headed · Irish
patronymic Connolly
Fierce as a hound · Irish
patronymic Daly
Descendant of Dálach · Irish
patronymic Doyle
Dark stranger · Irish
patronymic Duffy
Descendant of the dark one · Irish
patronymic Flynn
Descendant of Flann (ruddy) · Irish
patronymic Hogan
Youth · Irish
patronymic Kelly
Bright-headed · Irish
patronymic Kennedy
Helmeted head · Irish
patronymic McCarthy
Son of Cárthach · Irish
patronymic Murphy
Sea warrior · Irish
patronymic O’Brien
Descendant of Brian · Irish
patronymic O’Connor
Descendant of Conchobhar · Irish
patronymic O’Neill
Descendant of Niall · Irish
patronymic O’Sullivan
Descendant of the dark-eyed one · Irish
patronymic Quinn
Descendant of Conn · Irish
patronymic Reilly
Descendant of Raghallach · Irish
patronymic Ryan
Little king · Irish
descriptive Walsh
Welshman, foreigner · Irish