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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AHEARN Irish
Anglicized form of Ó HEACHTHIGHEARNA.
AHEARNE Irish
Anglicized form of Ó HEACHTHIGHEARNA.
ANGUS Irish, Scottish
From the given name AONGHUS.
BEIRNE Irish
Variant of O'BYRNE.
BERNE Irish
Variant of O'BYRNE.
BOYLE Irish
From Irish Ó Baoighill meaning "descendant of Baoigheall". The meaning of the given name Baoigheall is uncertain, but it is thought to be connected to Irish geall meaning "pledge".
BRADEN Irish
Anglicized form of Irish Ó Bradáin meaning "descendant of BRADÁN".
BRADY Irish
Anglicized form of the Irish name Ó Brádaigh meaning "descendant of BRÁDACH".
BRANNON Irish
From Irish Mac Branain meaning "son of BRAN (1)".
BREEN Irish
Anglicized form of Irish Ó Braoin meaning "descendant of Braon", a byname meaning "rain, moisture, drop".
BRENNAN Irish
From Irish Ó Braonáin which means "descendant of Braonán", a byname meaning "rain, moisture, drop" (with a diminutive suffix).
BROGAN Irish
Occupational name derived from Irish bróg meaning "shoe".
BUCKLEY (2) Irish
From Irish Ó Buachalla meaning "descendant of Buachaill", a nickname meaning "cowherd, servant".
BURKE English, Irish
Derived from Middle English burgh meaning "fortress, fortification, castle". It was brought to Ireland in the 12th century by the Norman invader William FitzAdelm de Burgo.
BUTLER English, Irish
Occupational name derived from Norman French butiller "wine steward", ultimately from Late Latin butticula "bottle". A famous bearer of this surname is the fictional character Rhett Butler, created by Margaret Mitchell for her novel 'Gone with the Wind' (1936).
BYRNE Irish
Variant of O'BYRNE.
BYRNES Irish
Variant of O'BYRNE.
CALLAGHAN Irish
Anglicized form of Irish Ó Ceallacháin meaning "descendant of CEALLACHÁN".
CAOMHÁNACH Irish
Irish Gaelic form of KAVANAGH.
CAREY Irish
Anglicized form of Irish Ó Ciardha meaning "descendant of CIARDHA".
CARMODY Irish
Anglicized form of Irish Ó Cearmada which means "descendant of Cearmaid", a Gaelic given name.
CARRAN Irish
Variant of CURRAN.
CARROLL Irish
From the given name CEARBHALL. A famous bearer was Lewis Carroll (1832-1898), whose real name was Charles Lutwidge Dodgson, the author of 'Alice's Adventures in Wonderland'.
CARY Irish
Variant of CAREY.
CASEY Irish
Anglicized form of Irish Ó Cathasaigh meaning "descendant of CATHASACH".
CASSIDY Irish
From Irish Ó Caiside meaning "descendant of Caiside". Caiside is a given name meaning "curly haired".
CAVAN Irish
Anglicized form of the Irish Ó Caoimháin meaning "descendant of CAOMHÁN".
CAVEY Irish
Possibly an Anglicized form of MAC DAIBHÉID.
CLEARY Irish
From Irish cléireach meaning "clerk" (see CLARK).
CLERY Irish
Variant of CLEARY.
CODY Irish
Anglicized form of Irish Ó Cuidighthigh meaning "descendant of CUIDIGHTHEACH". A famous bearer was the American frontiersman and showman Buffalo Bill Cody (1846-1917).
COGHLAN Irish
Anglicized form of Ó COCHLÁIN.
COLEMAN Irish, English
From the given name COLMÁN.
COLLINS (1) Irish
Anglicized form of Ó COILEÁIN. A famous bearer was Michael Collins, an Irish nationalist leader who was assassinated in 1922.
CONNELL Irish
Anglicized form of Irish Ó Conaill meaning "descendant of CONALL".
CONNOLLY Irish
Anglicized form of Irish Ó Conghalaigh, which means "descendant of Conghalach". Conghalach is a nickname meaning "valiant".
CONNOR Irish
Variant of O'CONNOR.
COONEY Irish
From Irish Ó Cuana meaning "descendant of Cuana". Cuana probably means "handsome, elegant". The Cooney sept originated in County Tyrone.
CORCORAN Irish
From Irish Ó Corcráin meaning "descendant of Corcrán", a given name derived from the Gaelic word corcair "purple".
COUGHLAN Irish
Anglicized form of Ó COCHLÁIN.
COUGHLIN Irish
Anglicized form of Ó COCHLÁIN.
CULLEN (2) Irish
Anglicized form of Ó COILEÁIN or Ó CUILINN.
CUMMINS English, Scottish, Irish
From an Old Breton given name, a cognate of CUIMÍN, introduced to Britain at the time of the Norman Conquest.
CURRAN Irish
Anglicized form of Irish Ó Corraidhín meaning "descendant of CORRAIDHÍN".
CURRY Irish
Anglicized form of Ó COMHRAIDHE or Ó CORRA.
DALEY Irish
Variant of DALY.
DALY Irish
Anglicized form of Irish Ó Dálaigh meaning "descendant of DÁLACH".
DAVIN Irish
Variant of DEVIN (1).
DEASMHUMHAIN Irish
Irish Gaelic form of DESMOND.
DEASÚN Irish
Irish variant of DESMOND.
DELANEY (2) Irish
Anglicized form of Irish Ó Dubhshláine meaning "descendant of DUBHSHLÁINE".
DEMPSEY Irish
Anglicized form of Irish Ó Díomasaigh meaning "descendant of Díomasach", a given name meaning "proud".
DESMOND Irish
Anglicized form of Gaelic Deasmhumhain meaning "South Munster", originally indicating a person who came from that region in Ireland.
DEVIN (1) Irish
Anglicized form of the Gaelic surnames Ó DAMHÁIN or Ó DUBHÁIN.
DEVLIN Irish
Anglicized form of the Irish Ó Doibhilin meaning "descendant of Doibhilin", a given name which may be derived from the Gaelic term dobhail meaning "unlucky".
DOHERTY Irish
From the Irish Ó Dochartaigh meaning "descendant of Dochartach". The byname Dochartach means "obstructive".
DOLAN Irish
From the Irish Ó Dubhshláin meaning "descendant of DUBHSHLÁINE".
DONNE Scottish, Irish
From Gaelic donn meaning "brown", a nickname for a person with brown hair.
DONNELLY Irish
From Irish Ó Donnghaile meaning "descendant of Donnghal". The given name Donnghal means "brown valour", from donn "brown" and gal "valour". This surname is associated with the descendants of Niall of the Nine Hostages.
DONOGHUE Irish
From Irish Ó Donnchadha meaning "descendant of DONNCHADH".
DONOVAN Irish
Anglicized form of the Irish name Ó Donndubháin meaning "descendant of DONNDUBHÁN".
DORAN Irish
From Irish Ó Deoráin meaning "descendant of Deoradhán", where Deoradhán is a given name meaning "exile, wanderer".
DOYLE Irish
From the Irish Ó Dubhghaill, which means "descendant of DUBHGHALL". A famous bearer was Sir Arthur Conan Doyle (1859-1930), the author of the Sherlock Holmes mystery stories.
DRISCOLL Irish
From Irish Ó hEidirsceóil meaning "descendant of the messenger".
DUANE Irish
Anglicized form of the Gaelic Ó DUBHÁIN.
DUFFY (1) Irish
Derived from Irish Ó Dubhthaigh meaning "descendant of DUBHTHACH". Their original homeland was Monaghan where the surname is still the most common; they are also from Donegal and Roscommon.
DUNN English, Scottish, Irish
Derived from Old English dunn "dark" or Gaelic donn "brown", referring to hair colour or complexion.
DURNIN Irish
From Irish Ó Doirnáin meaning "descendant of Doirnín", a given name meaning "little fist".
ENNIS Irish
Variant of INNES (1).
FANNON Irish
From the Irish Ó Fionnáin which meant "descendant of FIONN".
FARRELL Irish
Anglicized form of Irish Ó Fearghail meaning "descendant of FEARGHAL".
FERGUSON Irish, Scottish
Means "son of FERGUS".
FINN Irish
Derived from the given name FIONN.
FINNEGAN Irish
Anglicized form of Irish Ó Fionnagáin meaning "descendant of Fionnagán". The given name Fionnagán is a diminutive of FIONN.
FINNIN Irish
Diminutive form of FINN.
FITZGERALD Irish
Means "son of GERALD" in Anglo-Norman French. It was brought to Ireland with William the Conqueror.
FITZPATRICK Irish
Means "son of PATRICK" in Anglo-Norman French.
FITZSIMMONS Irish
Means "son of SIMON (1)" in Anglo-Norman French.
FLANAGAN Irish
From Irish Ó Flannagáin meaning "descendant of Flannagán". Flannagán is a given name meaning "red". From County Roscommon in Ireland, it has many other spellings.
FLYNN Irish
Anglicized form of Irish Ó Floinn meaning "descendant of FLANN".
FOLEY Irish
From Irish Ó Foghladha meaning "descendant of Foghlaidh". The byname Foghlaidh meant "pirate, marauder, plunderer".
FRIEL Irish
From the Irish Ó Frighil meaning "descendant of FEARGHAL".
FYLAN Irish
Variant of WHELAN.
GALLAGHER Irish
Anglicized form of the Irish Ó Gallchobhair meaning "descendant of GALLCHOBHAR".
GORMAN (2) Irish
From the Irish Ó Gormáin meaning "descendant of Gormán". The given name Gormán means "little blue one".
GUINNESS Irish
Variant of MCGUINNESS. The name is well known because of the Guinness brand of ale, established in 1759 by Arthur Guinness.
HALLORAN Irish
From Irish Ó hAllmhuráin meaning "descendant of Allmhurán". The given name Allmhurán means "stranger from across the sea".
HAYES (2) Irish
Anglicized form of Irish Ó hAodha meaning "descendant of AODH".
HEARN Irish
Anglicized form of Ó HEACHTHIGHEARNA.
HEFFERNAN Irish
From Irish Ó hIfearnáin meaning "descendant of Ifearnán". The byname Ifearnán means "little demon".
HENNESSY Irish
Anglicized form of Irish Ó hAonghuis meaning "descendant of AONGHUS".
HICKEY Irish
Anglicized form of Irish Ó hÍcidhe meaning "descendant of the healer".
HIGGINS Irish
From Irish Ó hUiginn which means "descendant of Uiginn". Uiginn is a byname meaning "Viking".
HINES Irish
Anglicized form of Irish Ó hEidhin meaning "descendant of Eidhin", a given name or byname of unknown origin.
HOGAN Irish
From Irish Ó hÓgáin meaning "descendant of Ógán". The given name Ógán is a diminutive of óg meaning "young".
HUGHES (2) Scottish, Irish
Anglicized form of MAC AODHA.
HYNES Irish
Variant of HINES.
IVERS English, Irish
Patronymic derived from the given name IVOR.
KAVANAGH Irish
Derived from the Irish Gaelic name Caomhánach, which means "a student of saint CAOMHÁN". It was the name used by a 12th-century king of Leinster, Domhnall Caomhánach, the eldest son of the historic Irish king Diarmait Mac Murchada.
KEARNEY Irish
From the Irish name Ó Ceithearnaigh meaning "descendant of Ceithearnach", a given name meaning "warrior".
KEEFE Irish
Anglicized form of the Irish Ó Caoimh meaning "descendant of CAOMH".
KEEGAN Irish
From Irish Mac Aodhagáin meaning "descendant of Aodhagán". The given name Aodhagán is a double diminutive of AODH.
KELLY (1) Irish
Anglicized form of Irish Ó Ceallaigh meaning "descendant of CEALLACH".
KENNEDY Irish
From the Irish name Ó Cinnéidigh meaning "descendant of CENNÉTIG". This surname was borne by assassinated American president John F. Kennedy (1917-1963).
KEY (2) Irish
Anglicized form of MAC AODHA.
KEYES (2) Irish
Anglicized form of MAC AODHA.
KEYS (2) Irish
Anglicized form of MAC AODHA.
KILDUFF Irish
From the Irish Mac Giolla Dhuibh meaning "son of the black-haired man".
KILLOUGH Irish
Indicated a person who was from Killough (County Down, Northern Ireland) or Killough (Wicklow, Ireland). The place name Killough means "church on the lake", derived from the Irish cill "church" and locha "lake".
LANE (3) Irish
From Irish Ó Luain meaning "descendant of Luan", a given name meaning "warrior".
LANNON Irish
Variant of LENNON.
LEARY Irish
Variant of O'LEARY.
LENNON Irish
Anglicized form of the Irish name Ó Leannáin, which means "descendant of Leannán". The given name Leannán means "lover". The name was borne by the musician John Lennon (1940-1980).
LYNCH Irish
From Irish Ó Loingsigh meaning "descendant of Loingseach", a given name meaning "mariner".
MAC AN ABA Irish, Scottish
Gaelic form of MCNAB.
MAC AN BHAIRD Irish
Irish Gaelic form of WARD (2).
MAC AODHA Scottish, Irish
Means "son of AODH" in Gaelic.
MAC AODHAGÁIN Irish
Irish Gaelic form of KEEGAN.
MAC BRANAIN Irish
Irish Gaelic form of BRANNON.
MAC CÁBA Irish, Scottish
Irish Gaelic form of MCCABE.
MACCAILÍN Irish, Scottish
Means "son of CAILEAN" in Gaelic.
MACCARRICK Irish
Means "son of Cúcharraige" in Irish. The given name Cúcharraige is composed of "hound" and carraig "rock".
MACCARTHY Irish
Means "son of CÁRTHACH" in Irish.
MAC CLÉIRICH Irish
Means "son of the clerk".
MACCLERY Irish
Anglicized form of MAC CLÉIRICH.
MAC CNÁIMHÍN Irish
Means "son of Cnámh". The Irish given name Cnámh means "bone".
MAC CONMARA Irish
Gaelic form of MCNAMARA.
MACCOUGHLAN Irish
Means "son of Cochlán". The given name Cochlán is derived from Irish cochal "cape" or "hood".
MAC DAIBHÉID Irish
Irish Gaelic form of MCDEVITT.
MAC DHUIBHINSE Irish
Irish Gaelic form of VINCENT (2).
MAC DIARMADA Irish
Irish Gaelic form of MCDERMOTT.
MAC DUIBHSHÍTHE Scottish, Irish
Means "son of Duibhshíth" in Gaelic. The given name Duibhshíth means "black peace".
MAC EOGHAIN Irish, Scottish
meaning "son of EOGHAN" in Gaelic.
MAC GHABHANN Irish
Means "son of the smith" in Irish.
MAC GIOLLA BHRIGHDE Irish
Means "son of the servant of BRIGHID" in Irish.
MAC GIOLLA DHUIBH Irish
Irish Gaelic form of KILDUFF.
MAC GIOLLA EOIN Irish
Irish Gaelic form of MCLAIN.
MACGOWAN Irish
Anglicized form of MAC GHABHANN.
MACKAY Scottish, Irish
Anglicized form of MAC AODHA.
MAC MAGHNUIS Irish
Irish Gaelic form of MCMANUS.
MAC MATHGHAMHNA Irish
Irish Gaelic form of MCMAHON.
MAC NAOIMHÍN Irish, Scottish
Means "son of NAOMHÁN" In Gaelic.
MAC NEACHTAIN Irish, Scottish
Means "son of NECHTAN" in Gaelic.
MACNEVIN Irish
Anglicized form of MAC NAOIMHÍN.
MAC NIADH Irish
Means "son of Niadh" in Irish. The given name Niadh means "champion".
MACQUEEN Irish, Scottish
Anglicized form of MACSHUIBHNE.
MACSHUIBHNE Irish, Scottish
Means "son of SUIBHNE" in Gaelic.
MAC SÍTHIGH Irish
Gaelic form of MCSHEEHY.
MAC UILEAGÓID Irish
Irish Gaelic form of MCELLIGOTT.
MADDEN Irish
Anglicized form of Ó MADAIDHÍN.
MADIGAN Irish
Anglicized form of Ó MADAIDHÍN.
MAG AONGHUIS Irish
Irish Gaelic form of MCGUINNESS.
MAGEE Scottish, Irish
Anglicized form of MAC AODHA.
MAGORIAN Irish
Possibly a variant of MCGOWAN or MCGOVERN.
MAG RAITH Irish, Scottish
Gaelic form of MCCRAE.
MAG SHAMHRADHÁIN Irish
Irish Gaelic form of MCGOVERN.
MAG UIDHIR Irish
Irish Gaelic form of MCGUIRE.
MAGUIRE Irish
Variant of MCGUIRE.
MAHONEY Irish
Anglicized form of the Irish Ó Mathghamhna meaning "descendant of MATHGHAMHAIN".
MALLEY Irish
Anglicized form of Ó MÁILLE.
MALLON Irish
Variant of MALONE.
MALLOYE Irish
Variant of MOLLOY.
MALONE Irish
Anglicized form of Irish Ó Maoil Eoin which means "descendant of a disciple of Saint JOHN".
MARKEY Irish
From the Irish Ó Marcaigh meaning "descendant of Marcach", a given name meaning "horse rider".
MCADAMS Scottish, Irish
Means "son of ADAM" in Gaelic.
MCALISTER Scottish, Irish
From Gaelic Mac Alastair meaning "son of ALISTAIR".
MCBRIDE Irish
Anglicized form of MAC GIOLLA BHRIGHDE.
MCCABE Irish, Scottish
Means "son of Cába", where Cába is a given name meaning "cape".
MCCAIG Irish, Scottish
Anglicized form of Gaelic Mac Thaidhg meaning "son of TADHG".
MCCLEARY Irish
Anglicized form of MAC CLÉIRICH.
MCCLELLAND Irish, Scottish
From Gaelic Mac Giolla Fhaoláin meaning "son of the servant of FAOLÁN".
MCCONNELL Scottish, Irish
Derived from Gaelic Mac Domhnaill (see MACDONALD).
MCCORMICK Irish, Scottish
From Gaelic Mac Cormaic meaning "son of CORMAC".
MCCRACKEN Irish, Scottish
Anglicized form of Gaelic Mac Reachtain, Ulster variant of MAC NEACHTAIN.
MCCRAE Irish, Scottish
From the Gaelic Mag Raith meaning "son of Rath", a given name meaning "prosperity" or "grace".
MCCRORY Irish, Scottish
Anglicized form of Gaelic Mac Ruaidhrí meaning "son of RUAIDHRÍ".
MCCUNE Irish
Anglicized form of MAC EOGHAIN.
MCDERMOTT Irish
Means "son of DIARMAID". The McDermotts were nobility in the Kingdom of Connaught, a province in Ireland.
MCDEVITT Irish
Anglicized form of the Gaelic name Mac Daibhéid meaning "son of DÁIBHÍ".
MCELLIGOTT Irish
Anglicized form of the Gaelic name Mac Uileagóid meaning "son of Uileagóid", a diminutive of UILLEAG.
MCFARLANE Irish, Scottish
Anglicized form of Gaelic Mac Pharlain meaning "son of PARTHALÁN".
MCFEE Scottish, Irish
Anglicized form of MAC DUIBHSHÍTHE.
MCGEE Irish, Scottish
Anglicized form of MAC AODHA.
MCGILL Irish, Scottish
Means "son of the foreigner" in Gaelic, derived from gall "foreigner".
MCGOVERN Irish
Anglicized form of Gaelic Mag Shamhradháin meaning "son of Samhradháin", a given name meaning "summer".
MCGOWAN Irish
Anglicized form of MAC GHABHANN.
MCGUINNESS Irish
Anglicized form of Irish Mag Aonghuis meaning "son of AONGHUS".
MCGUIRE Irish
Anglicized form of Irish Mag Uidhir meaning "son of Odhar", a given name meaning "pale-coloured".
MCIVER Irish, Scottish
Means "son of IVOR" in Irish.
MCKAY Scottish, Irish
Anglicized form of MAC AODHA.
MCKOWEN Irish
Anglicized form of MAC EOGHAIN.
MCLAIN Scottish, Irish
Anglicized form of Gaelic Mac Giolla Eoin meaning "son of the servant of EOIN".
MCMAHON Irish
Anglicized form of Mac Mathghamhna meaning "son of MATHGHAMHAIN".
MCMANUS Irish
Anglicized form of Gaelic Mac Maghnuis meaning "son of MÁGHNUS".
MCNAB Irish, Scottish
Anglicized form of Gaelic Mac an Aba meaning "son of the abbot".
MCNAMARA Irish
From Irish Mac Conmara meaning "son of Conmara". The given name Conmara is composed of "hound" and muir "sea".
MCNEE Irish
Anglicized form of MAC NIADH.
MCNEIL Irish, Scottish
Anglicized form of Gaelic Mac Néill meaning "son of NIALL".
MCNIALL Irish
Variant of MCNEIL.
MCNIVEN Irish
Anglicized form of MAC CNÁIMHÍN.
MCQUEEN Irish, Scottish
Anglicized form of MACSHUIBHNE.
MCREYNOLDS Scottish, Irish
Means "son of REYNOLD" in Gaelic.
MCSHEEHY Irish
Anglicized form of Gaelic Mac Síthigh, meaning "son of SÍTHEACH".
MEANEY Irish
Variant of O'MOONEY.
MILLIGAN Irish, Scottish
From the Gaelic given name Maolagán, a derivative of maol meaning "bald" or "tonsured".
MOFFETT Scottish, Irish
From a place name in Scotland meaning "long field".
MOHAN Irish
Anglicized form of Irish Ó Mocháin meaning "descendant of MOCHÁN".
MOLLOWN Irish
Variant of MALONE.
MOLONEY Irish
From Irish Ó Maol Dhomhnaigh meaning "descendant of a church servant".
MONAHAN Irish
From Irish Ó Manacháin meaning "descendant of Manacháin". The given name Manacháin meant "little monk", from manach "monk" and a diminutive suffix.
MONDAY (3) Irish
Anglicized form of MAC GIOLLA EOIN. The last part of the surname was mistakenly taken as the Gaelic word for "Monday", Luain.
MOON (3) Irish
Variant of MOHAN.
MOONEY Irish
Variant of O'MOONEY.
MORIARTY Irish
From Irish Ó Muircheartach meaning "descendant of MUIRCHERTACH". This was the surname given by Sir Arthur Conan Doyle to the antagonist in the Sherlock Holmes series.
MORRIS English, Irish, Scottish, Welsh
Derived from the given name MAURICE.
MULLANE Irish
Variant of MULLEN.
MULLEN Irish
From the Irish Ó Maoláin meaning "descendant of Maolán". The given name Maolán meant "devotee".
MULLOY Irish
Variant of MOLLOY.
MULRENNAN Irish
From the Irish Maol Bhréanáin meaning "devotee of Saint BRENDAN". The name originated in the North West of Ireland, in Roscommon.
MULRYAN Irish
Anglicized form of Ó MAOIL RIAIN.
MURDOCK Irish
Derived from the given name MURCHADH.
MURPHY Irish
Anglicized form of Irish Ó Murchadha meaning "descendant of MURCHADH".
MURRAY (2) Irish
Anglicized form of Irish Ó Muireadhaigh meaning "descendant of MUIREADHACH".
NEIL Irish, Scottish, English
Derived from the given name NEIL.
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".