Irish Surnames

Most Irish surnames, in their Gaelic form, start with Ó, Mac, or occasionally de (which indicates a name of Norman origin). Ó means 'grandson of', Mac means 'son of' and de means 'of'.

English Form Irish Form
Adair Ó Daire
Bannon Ó Banáin
Bardon Ó Bardáin
Beary Ó Beara
Begley Ó Beaglaioch
Beglan Ó Beigleighinn
Bergin Ó hAimeirgin
Berrigan Ó hAimeirgin
Blake de Blaca
Braden Ó Bradáin
Bradigan Ó Bradagáin
Brady Mac Bradaigh
Bragan Ó Bragain
Branigan Ó Branagain
Brennigan Ó Branagain
Brannagh Ó Breathnach
Brannan Ó/Mac Branain
Bree Ó Breaghdha
Bray Ó Breaghdha
Breen Ó/Mac Braoin
Brennan Ó Braonain
Breslin Ó Breaslain
Brogan Ó Brogain
English Form Irish Form
Cabe Mac Caba
Cadden Mac Cadain
Cagney Ó Caingne
Cahey Mac Eachaidh
Callinan Ó Callanain
Canavan Ó Ceanndubháin
Carey Ó Ciardha
Carley Mac Fhearghaile
Carlin Ó Cairealláin
Casey Ó/Mac Ceasaigh
Cassidy Ó Caiside
Cavanagh Cavanagh
Clancy Mac Fhlannchaidh
Cody Mac Oda
Collins Ó Coilean
Coulter Ó Coltair
Conlan Ó Connelain
Connery Ó Conaire
Corcoran Mac Corcrain
Corey Mac Godhfraigh
Corley Ó Thoirdealbhaigh
Cullen Ó/Mac Cuilinn
Curran Ó Corráin

English Form Irish Form
Delaney Ó Dubhshlaine
Devlin Ó Doibhilin
Dillon de Leon
Donegan Ó Donnagáin
Donovan Ó Donnabháin
Doran Ó Deorain
Doyle Ó Dubhghaill
Duane Ó Dubhan
Duff Dubh
Duffy Ó Dubhthaigh
Dugan Ó Dubhgain
Dwyer Ó Duibhir
Egan Mac Aodhagáin
Fagan Ó Faodhagáin
Fallon Ó Fallamhán
Farrell Ó Fearghal
Farren Ó Faracháin
Finnegan Ó Fionnagain
Fitzgerald Mac Geralt
Fitzpatrick Mac Pádraig
Flannery Ó Flannabhra
English Form Irish Form
Flynn Ó Floinn
Gillan Ó Giollain
Gowan Ó Gabhann
Grady Ó Grádaigh
Hagan Ó hAgain
Hanlon Ó hAnluan
Hayes Ó hAodha
Hennessey Ó hAonasa
Hogan Ó hOgain
Kavanagh Caomhanach
Kearney Ó Cearnaigh
Keegan Mac Aodhagain
Keenan Ó Cianáin
Kelly Mac Ceallach
Kenna Mac Cionaith
Kennan Mac Fhionnan
Kennedy Ó Cinnéde
Kerrin Ó Ceirin
Kiley Ó Cadhla
Kinsella Cinnsealach
Kirby Ó Ciarmhaic

English Form Irish Form
Lacy deLeis
Larkin Ó Lorcáin
Lowery Ó Labhradha
Leary Ó Laoghaire
Lennon/Lennan Ó Leannain
Madigan Ó Madagáin
Maguire Mac Uidhir
Malone Mal Eoin
Malinn Maoilfhinn
Manley Ó Manlaigh
Meara, Mara Ó Meadhra
Meegan Ó Miadhagáin
Murphy Ó Murchu
Murray Ó Muireadhach
Nolan Ó Nualláin
English Form Irish Form
Pierce/Pearse Ó/Mac Piarais
Quillan Ó Cuileann
Quinn Ó Cuinn
Quinlan Ó Caoinlean
Regan/Reagan Ó Riagáin
Reilly Ó Raghallaigh
Ryan Ó Riain
Scully Ó Scolaighe
Shannon Seanáin
Sheridan Ó Siridean
Sorley Mac Sorlaigh
Sullivan Ó Suileabháin
Tracy Ó Treasaigh
Vaughan Ó Beacháin
. .
Courtesy of Vivian and Jack
IrishPage.com 2002
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