Irish Surnames

Irish names are used on the island of Ireland as well as elsewhere in the Western World as a result of the Irish diaspora. See also about Irish names.
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NEVILLE English, Irish
From the names of towns in Normandy, variously Neuville or Néville, meaning "new town" in French.
NOLAN Irish
Anglicized form of Irish Ó Nualláin meaning "descendant of NUALLÁN".
Ó BAOGHILL Irish
Irish Gaelic form of BOYLE.
O'BERNE Irish
Variant of O'BYRNE.
O'BOYLE Irish
Variant of BOYLE.
Ó BRÁDAIGH Irish
Irish Gaelic form of BRADY.
Ó BRADÁIN Irish
Irish Gaelic form of BRADEN.
Ó BRAOIN Irish
Irish Gaelic form of BREEN.
Ó BRAONÁIN Irish
Irish Gaelic form of BRENNAN.
Ó BRIAIN Irish
Irish Gaelic form of O'BRIEN.
O'BRIAN Irish
Variant of O'BRIEN.
O'BRIEN Irish
From the Irish Ó Briain meaning "descendant of BRIAN".
Ó BROIN Irish
Irish Gaelic form of O'BYRNE.
Ó BUACHALLA Irish
Irish Gaelic form of BUCKLEY (2).
O'BYRNE Irish
Anglicized form of Irish Ó Broin meaning "descendant of BRAN (1)".
Ó CAISIDE Irish
Irish Gaelic form of CASSIDY.
Ó CAOIMH Irish
Irish Gaelic form of KEEFE.
Ó CAOIMHÁIN Irish
Irish Gaelic form of CAVAN.
Ó CAOINDEALBHÁIN Irish
Irish Gaelic form of QUINLAN.
Ó CATHÁIN Irish
Means "descendant of CATHÁN".
Ó CATHASAIGH Irish
Irish Gaelic form of CASEY.
Ó CEALLACHÁIN Irish
Irish Gaelic form of CALLAGHAN.
Ó CEALLAIGH Irish
Irish Gaelic form of KELLY (1).
Ó CEARMADA Irish
Irish Gaelic form of CARMODY.
Ó CEITHEARNAIGH Irish
Irish Gaelic form of KEARNEY.
Ó CIARDHA Irish
Irish Gaelic form of CAREY.
Ó CINNÉIDIGH Irish
Irish Gaelic form of KENNEDY.
Ó CLÉIRIGH Irish
Means "descendant of the clerk" in Irish.
O'CLERY Irish
Anglicized form of Ó CLÉIRIGH.
Ó CNÁIMHÍN Irish
Means "descendant of Cnámh", Cnámh being a nickname meaning "bone".
Ó COCHLÁIN Irish
Means "descendant of Cochlán", where the given name Cochlán is derived from Irish cochal "cape" or "hood". This surname originated in County Cork, Ireland.
Ó COIGLIGH Irish
Irish Gaelic form of QUIGLEY.
Ó COILEÁIN Irish
Means "descendant of COILEAN" in Irish.
Ó COMHRAIDHE Irish
Means "descendant of Comhraidhe", in which the given name Comhraidhe is of unknown meaning.
Ó CONAILL Irish
Irish Gaelic form of CONNELL.
Ó CONCHOBHAIR Irish
Irish Gaelic form of O'CONNOR.
Ó CONGHALAIGH Irish
Irish Gaelic form of CONNOLLY.
O'CONNOR Irish
From Irish Ó Conchobhair meaning "descendant of CONCHOBHAR".
Ó CORCRÁIN Irish
Irish Gaelic form of CORCORAN.
Ó CORRA Irish
Means "descendant of Corra" in Irish. The given name Corra means "spear".
Ó CORRAIDHÍN Irish
Irish Gaelic form of CURRAN.
Ó CUAIG Irish
Irish Gaelic form of QUIGG.
Ó CUANA Irish
Irish Gaelic form of COONEY.
Ó CUIDIGHTHIGH Irish
Irish Gaelic form of CODY.
Ó CUILINN Irish
Means "descendant of Cuileann", Cuileann being a nickname meaning "holly".
Ó CUINN Irish
Irish Gaelic form of QUINN.
Ó CUIRC Irish
Irish Gaelic form of QUIRKE.
Ó DÁLAIGH Irish
Irish Gaelic form of DALY.
Ó DAMHÁIN Irish
Means "descendant of DAMHÁN".
Ó DEORÁIN Irish
Irish Gaelic form of DORAN.
Ó DÍOMASAIGH Irish
Irish Gaelic form of DEMPSEY.
Ó DOCHARTAIGH Irish
Irish Gaelic form of DOHERTY.
Ó DOIBHILIN Irish
Irish Gaelic form of DEVLIN.
Ó DOIRNÁIN Irish
Irish Gaelic form of DURNIN.
Ó DOMHNAILL Irish
Irish Gaelic form of O'DONNELL.
Ó DONNCHADHA Irish
Irish Gaelic form of DONOGHUE.
Ó DONNDUBHÁIN Irish
Irish Gaelic form of DONOVAN.
O'DONNELL Irish
Anglicized form of Irish Ó Domhnaill meaning "descendant of DOMHNALL".
Ó DONNGHAILE Irish
Irish Gaelic form of DONNELLY.
O'DOYLE Irish
Variant of DOYLE.
Ó DUBHÁIN Irish
Means "descendant of DUBHÁN".
Ó DUBHGHAILL Irish
Irish Gaelic form of DOYLE.
Ó DUBHSHLÁIN Irish
Irish Gaelic form of DOLAN.
Ó DUBHTHAIGH Irish
Irish Gaelic form of DUFFY (1).
Ó FAOLÁIN Irish
Irish Gaelic form of WHELAN.
Ó FEARGHAIL Irish
Irish Gaelic form of FARRELL.
Ó FIONNAGÁIN Irish
Irish Gaelic form of FINNEGAN.
Ó FIONNÁIN Irish
Irish Gaelic form of FANNON.
Ó FLANNAGÁIN Irish
Irish Gaelic form of FLANAGAN.
Ó FLOINN Irish
Irish Gaelic form of FLYNN.
Ó FOGHLADHA Irish
Irish Gaelic form of FOLEY.
Ó FRIGHIL Irish
Irish Gaelic form of FRIEL.
Ó GALLCHOBHAIR Irish
Irish Gaelic form of GALLAGHER.
Ó GORMÁIN Irish
Irish Gaelic form of GORMAN (2).
Ó HALLMHURÁIN Irish
Irish Gaelic form of HALLORAN.
O'HANNAGAIN Irish
From Irish Ó hAnnagáin, which means "descendant of Annagán". The given name Annagán was a diminutive of Annadh meaning "delay".
Ó HANNAGÁIN Irish
Irish Gaelic form of O'HANNAGAIN.
Ó HAODHA Irish
Irish Gaelic form of HAYES (2).
Ó HAONGHUIS Irish
Irish Gaelic form of HENNESSY.
O'HARA Irish
From the Irish Ó hEaghra, which means "descendant of Eaghra", Eaghra being a given name of uncertain origin. Supposedly, the founder of the clan was Eaghra, a 10th-century lord of Luighne. A famous fictional bearer of this surname is Scarlett O'Hara, a character in Margaret Mitchell's 'Gone With The Wind' (1936).
Ó HEACHTHIGHEARNA Irish
Means "descendant of Eichthighearn", where the personal name Eichthighearn means "horse lord" in Gaelic.
Ó HEAGHRA Irish
Irish Gaelic form of O'HARA.
O'HEARN Irish
Anglicized form of Ó HEACHTHIGHEARNA.
Ó HÉIDEÁIN Irish
Means "descendant of Éideán" in Irish. The given name Éideán is a diminutive of éideadh meaning "clothes, armour".
Ó HEIDHIN Irish
Irish Gaelic form of HINES.
Ó HÉIDÍN Irish
Means "descendant of Éidín" in Irish. The given name Éidín is a diminutive of éideadh meaning "clothes, armour".
Ó HEIDIRSCEÓIL Irish
Irish Gaelic form of DRISCOLL.
Ó HÍCIDHE Irish
Irish Gaelic form of HICKEY.
Ó HIFEARNÁIN Irish
Irish Gaelic form of HEFFERNAN.
Ó HÓGÁIN Irish
Irish Gaelic form of HOGAN.
Ó HUIGINN Irish
Irish Gaelic form of HIGGINS.
O'KANE Irish
Anglicized form of Ó CATHÁIN.
O'KEEFE Irish
Variant of KEEFE.
Ó LAOGHAIRE Irish
Irish Gaelic form of O'LEARY.
Ó LEANNÁIN Irish
Irish Gaelic form of LENNON.
O'LEARY Irish
From Irish Ó Laoghaire meaning "descendant of LAOGHAIRE".
Ó LOINGSIGH Irish
Irish Gaelic form of LYNCH.
Ó LUAIN Irish
Irish Gaelic form of LANE (3).
Ó MADAIDHÍN Irish
Means "descendant of Madaihín", a given name derived from Irish madadh meaning "dog, mastiff".
Ó MÁILLE Irish
Means "descendant of a nobleman" from the Irish Gaelic mál.
O'MALLEY Irish
Anglicized form of Ó MÁILLE.
Ó MANACHÁIN Irish
Irish Gaelic form of MONAHAN.
Ó MAOIL EOIN Irish
Irish Gaelic form of MALONE.
Ó MAOIL RIAIN Irish
Means "descendant of a follower of RÍAN", derived from Irish maol meaning "follower".
Ó MAOILSHEACHLAINN Irish
Means "descendant of MAOLSHEACHLANN" in Irish.
Ó MAOLAGÁIN Irish
Irish Gaelic form of MILLIGAN.
Ó MAOLÁIN Irish
Irish Gaelic form of MULLEN.
Ó MAOL AODHA Irish
Means "descendant of a follower of Saint AODH". It is derived from Irish maol meaning "follower, servant".
Ó MAOL BHRÉANÁIN Irish
Means "descendant of a follower of Saint BRENDAN" in Irish.
Ó MAOL DHOMHNAIGH Irish
Irish Gaelic form of MOLONEY.
Ó MAOLMHUAIDH Irish
Means "descendant of Maolmhuadh", Maolmhuadh being a given name meaning "proud chief", derived from Gaelic maol meaning "chief" and muadh meaning "proud, noble".
Ó MAONAIGH Irish
Irish Gaelic form of O'MOONEY.
Ó MARCAIGH Irish
Irish Gaelic form of MARKEY.
Ó MATHGHAMHNA Irish
Irish Gaelic form of MAHONEY.
Ó MEADHRA Irish
Means "descendant of Meadhra". The given name Meadhra is derived from the Gaelic meadhar meaning "merry, happy".
Ó MOCHÁIN Irish
Irish Gaelic form of MOHAN.
O'MOONEY Irish
From the Irish Ó Maonaigh meaning "descendant of Maonaigh". The given name Maonaigh means "wealthy".
Ó MUIRCHEARTACH Irish
Irish Gaelic form of MORIARTY.
Ó MUIREADHAIGH Irish
Irish Gaelic form of MURRAY (2).
Ó MURCHADHA Irish
Irish Gaelic form of MURPHY.
O'NEAL Irish
From Irish ó Néill meaning "descendant of NEIL".
O'NEILL Irish
Variant of O'NEAL.
Ó NÉILL Irish
Irish Gaelic form of O'NEAL.
O'NIALL Irish
Variant of O'NEAL.
Ó NUALLÁIN Irish
Irish Gaelic form of NOLAN.
Ó RABHARTAIGH Irish
Irish Gaelic form of RAFFERTY.
Ó RAGHAILLIGH Irish
Means "descendant of Raghailligh", an Irish given name of unknown meaning.
O'REILLY Irish
Anglicized form of Ó RAGHAILLIGH.
Ó RÍAGÁIN Irish
Irish Gaelic form of REAGAN.
Ó RIAIN Irish
Means "descendant of RÍAN".
Ó RINN Irish
Means "descendant of Rinn". The given name Rinn means "star" in Irish.
ORMAN Irish
Anglicized form of Ó RUAIDH.
ORMOND Irish
Anglicized form of Ó RUAIDH.
ORMONDE Irish
Anglicized form of Ó RUAIDH.
Ó RODAGH Irish
Means "descendant of Rodach" in Irish. The given name Rodach is derived from from Irish rod meaning "spirited, furious".
Ó RUADHÁIN Irish
Means "descendant of RUADHÁN" in Irish.
Ó RUAIDH Irish
Means "descendant of RUADH" in Irish.
Ó SCOLAIDHE Irish
Means "descendant of the scholar" from Irish scholaidhe.
Ó SÉAGHDHA Irish
Means "descendant of SÉAGHDHA".
Ó SEANÁIN Irish
Irish Gaelic form of SHANNON.
Ó SEIGHIN Irish
Means "descendant of Seighin". The given name Seighin means "small hawk" from Old Irish séigene.
O'SHEA Irish
Anglicized form of Ó SÉAGHDHA.
Ó SÍODA Irish
Means "descendant of Síoda", a byname meaning "silk" in Irish.
Ó SIRIDEÁIN Irish
Irish Gaelic form of SHERIDAN.
Ó SUAIRD Irish
Means "descendant of Suart" in Irish. Suart is derived from the Old Norse name SIGURD.
Ó SÚILEABHÁIN Irish
Irish Gaelic form of SULLIVAN.
Ó TADHGÁIN Irish
Irish Gaelic form of TEAGAN.
Ó TAIDHG Irish
Irish Gaelic form of TEAGUE (1).
Ó TÍGHEARNAIGH Irish
Irish Gaelic form of TIERNEY.
O'TOOLE Irish
Anglicized form of Irish Ó Tuathail meaning "descendant of TUATHAL".
Ó TREASAIGH Irish
Irish Gaelic form of TRACEY (2).
Ó TUATHAIL Irish
Irish Gaelic form of O'TOOLE.
POWER (1) English, Irish
From Old French Poier, indicating a person who came from the town of Poix in Picardy, France.
QUIGG Irish
Anglicized form of Irish Ó Cuaig meaning "descendant of Cuaig", a given name of unknown meaning.
QUIGLEY Irish
Anglicized form of Irish Ó Coigligh meaning "descendant of Coigleach", a given name meaning "untidy".
QUINLAN Irish
From Irish Ó Caoindealbháin, which means "descendant of Caoindealbhán", a given name meaning "comely form".
QUINN Irish
Anglicized form of Irish Ó Cuinn meaning "descendant of CONN".
QUIRK Irish
Variant of QUIRKE.
QUIRKE Irish
Anglicized form of Irish Ó Cuirc meaning "descendant of Corc", a given name meaning "heart".
RAFFERTY Irish
Anglicized form of Irish Ó Rabhartaigh meaning "descendant of Rabhartach". The given name Rabhartach means "flood tide".
READY (3) Irish
Anglicized form of Ó RODAGH.
REAGAN Irish
Anglicized form of Irish Ó Ríagáin meaning "descendant of RIAGÁN". A famous bearer was American president Ronald Reagan (1911-2004).
REGAN Irish
Variant of REAGAN.
REILLY Irish
Anglicized form of Ó RAGHAILLIGH.
RINNE (1) Irish
Anglicized form of Ó RINN.
ROWAN Irish
Anglicized form of Ó RUADHÁIN.
RUANE Irish
Anglicized form of Ó RUADHÁIN.
RYAN Irish
Anglicized form of Ó RIAIN, or else a simplified form of MULRYAN.
SCULLY Irish
Anglicized form of Ó SCOLAIDHE.
SEWARD (3) Irish
Anglicized form of Ó SUAIRD.
SHANNON Irish
From Irish Ó Seanáin meaning "descendant of SEANÁN".
SHEA Irish
Anglicized form of Ó SÉAGHDHA.
SHEEDY Irish
Anglicized form of Ó SÍODA.
SHEEHY Irish
Anglicized form of the Gaelic given name SÍTHEACH.
SHEENAN Irish
Variant of SHANNON.
SHERIDAN Irish
From the Irish name Ó Sirideáin meaning "descendant of Sirideán". The given name Sirideán means "searcher".
SHINE (2) Irish
Anglicized form of Ó SEIGHIN.
SLANE Irish
Originally indicated a person from Slane, County Meath, Ireland, which is derived from the given name SLÁINE.
SLOAN Irish
Patronymic name derived from the early Irish given name SLUAGHADHÁN.
SLOANE Irish
Variant of SLOAN.
SOWARDS English, Irish
Possibly a variant of SEWARD (1) or SEWARD (3).
SULLIVAN Irish
Anglicized form of the Irish name Ó Súileabháin meaning "descendant of Súileabhán". The name Súileabhán means "little dark eye".
TAGGART Irish, Scottish
Anglicized form of Irish Mac an tSagairt meaning "son of the priest". This name comes from a time when the rules of priestly celibacy were not strictly enforced.
TEAGAN Irish
Anglicized form of Irish Ó Tadhgáin meaning "descendant of TADHGÁN".
TEAGUE (1) Irish
Anglicized form of Irish Ó Taidhg meaning "descendant of TADHG".
TIERNEY Irish
From the Irish Ó Tíghearnaigh meaning "descendant of TIGHEARNACH".
TIGHE Irish
Anglicized form of Ó TAIDHG.
TOOLE Irish
Variant of O'TOOLE.
TRACEY (2) Irish
Anglicized form of Irish Ó Treasaigh meaning "descendant of TREASACH".
VINCENT (2) Irish
Anglicized form of Irish Mac Dhuibhinse meaning "son Duibhinse", a given name meaning "black island".
WALLACE Scottish, English, Irish
Means "foreigner, stranger, Celt" from Norman French waleis (of Germanic origin). It was often used to denote native Welsh and Bretons. A famous bearer was the 13th-century Sir William Wallace of Scotland.
WALSH English, Irish
From Old English wælisc meaning "foreigner, stranger, Celt".
WARD (2) Irish
Anglicized form of Irish Mac an Bhaird, which means "son of the bard".
WHALEN Irish
Variant of WHELAN.
WHELAN Irish
Anglicized form of Irish Ó Faoláin meaning "descendant of FAOLÁN".