Irish Origin Surnames

This is a list of surnames in which the origin is Irish. Irish is the Celtic language spoken in Ireland.

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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.

Baird Scottish
Anglicized form of Mac an Baird.

Beirne Irish
Variant of O'Byrne.

Berne Irish
Variant of O'Byrne.

Blain Scottish
From the given name Bláán.

Blaine Scottish
From the given name Bláán.

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". A famous bearer is the American football quarterback Tom Brady (1977-).

Brannon Irish
Variant of Brennan.

Breen Irish
Anglicized form of Irish Ó Braoin meaning "descendant of Braon", a byname meaning "rain, moisture, drop".

Brennan Irish
From Irish Ó Braonáin meaning "descendant of Braonán", a byname meaning "rain, moisture, drop" (with a diminutive suffix).

Brogan Irish
Occupational name derived from Irish bróg meaning "shoe".

Brontë Irish
Variant of Brunty adopted by the Irish-born Englishman Patrick Brunty (1777-1861) as an adult. He was the father of Charlotte, Emily, and Anne Brontë, each prominent authors.

Brunty Irish
Variant of Prunty.

Bryan English
From the given name Brian.

Bryant English
From the given name Brian.

Buckley 2 Irish
From Irish Ó Buachalla meaning "descendant of Buachaill", a nickname meaning "cowherd, servant".

Burns 2 Irish
Variant of O'Byrne.

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.

Caden Irish
From Irish Mac Cadáin meaning "descendant of Cadán", a given name of unknown meaning.

Callaghan Irish
Variant of Callahan.

Callahan Irish
Anglicized form of Irish Ó Ceallacháin meaning "descendant of Cellachán".

Callan Irish
Anglicized form of Irish Ó Cathaláin meaning "descendant of Cathalán".

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 meaning "descendant of Cearmaid", a Gaelic given name.

Carr 2 Irish
Anglicized form of Ó Carra.

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 Cathassach".

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".

Cavanagh Irish
Variant of Kavanagh.

Cavanah Irish
Variant of Kavanagh.

Cavanaugh Irish
Variant of Kavanagh.

Cavey Irish
Possibly an Anglicized form of Mac Daibhéid.

Clancy Irish
From Irish Mac Fhlannchaidh meaning "descendant of Flannchadh". The given name Flannchadh means "red warrior".

Cleary Irish
From Irish cléireach meaning "clerk" (see Clark).

Clery Irish
Variant of Cleary.

Cody Irish
Anglicized form of Irish Ó Cuidighthigh or Mac Óda. 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".

Connelly Irish
Variant of Connolly.

Connery Irish
Variant of Conroy.

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.

Conroy Irish
Anglicized form of Irish Ó Conaire, which means "descendant of Conaire". Conaire is a nickname meaning "hound keeper".

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.

Crowley 1 Irish
From the Irish name Ó Cruadhlaoich meaning "descendant of Cruadhlaoch", a given name meaning "hardy hero".

Cullen 2 Irish
Anglicized form of Ó Coileáin or Ó Cuilinn.

Cummings English
Variant of Cummins.

Cummins English, Scottish, Irish
From the Old Breton given name Cunmin, a cognate of Cuimín, introduced to Britain at the time of the Norman Conquest.

Cunningham 2 Irish
From Irish Ó Cuinneagáin meaning "descendant of Cuinneagán", a diminutive of Conn.

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".

Daugherty Irish
Variant of Doherty.

Davin Irish
Variant of Devin 1.

Delaney 2 Irish
Anglicized form of Irish Ó Dubhshláine meaning "descendant of Dubhshláine".

Delany Irish
Variant of Delaney 2.

Dempsey Irish
Anglicized form of Irish Ó Díomasaigh meaning "descendant of Díomasach", a given name meaning "proud".

Dermott Irish
Variant of McDermott.

Desmond Irish
Anglicized form of Irish Ó Deasmhumhnaigh meaning "descendant of the man from South Munster", originally indicating a person who came from the region of South Munster (Desmond) in Ireland.

Devin 1 Irish
Anglicized form of the Irish surnames Ó Damháin or Ó Dubháin.

Devine 1 Irish
Variant of Devin 1.

Devlin Irish
Anglicized form of the Irish Ó Doibhilin meaning "descendant of Doibhilin", a given name that 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".

Donaghue Irish
Variant of Donoghue.

Donalds English
Derived from the given name Donald.

Donaldson English
Means "son of Donald". A notable bearer is the online personality Jimmy Donaldson (1998-), who goes by the alias MrBeast.

Donne Scottish, Irish
From Gaelic donn meaning "brown", a nickname for a person with brown hair.

Donnell Irish
Variant of O'Donnell.

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".

Donohoe Irish
Variant of Donoghue.

Donohue Irish
Variant of Donoghue.

Donovan Irish
Anglicized form of the Irish name Ó Donndubháin meaning "descendant of Donndubán".

Doran Irish
From Irish Ó Deoradháin meaning "descendant of Deoradhán", where Deoradhán is a given name meaning "exile, wanderer".

Dougherty Irish
Variant of Doherty.

Douglas Scottish
From the name of a town in Lanarkshire, itself named after a tributary of the River Clyde called the Douglas Water, derived from Gaelic dubh "dark" and glais "water, river" (an archaic word related to glas "grey, green"). This was a Scottish Lowland clan, the leaders of which were powerful earls in the medieval period.

Douglass Scottish
Variant of Douglas.

Doyle Irish
From the Irish Ó Dubhghaill, which means "descendant of Dubhghall". A famous bearer was 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 Irish Ó Dubháin meaning "descendant of Dubhán".

Dùbhghlas Scottish Gaelic
Gaelic form of Douglas.

Duff Scottish, Irish
Anglicized form of Mac Dhuibh or Ó Duibh.

Duffy 1 Irish
Derived from Irish Ó Dubhthaigh meaning "descendant of Dubthach". Their original homeland was Monaghan where the surname is still the most common; they are also from Donegal and Roscommon.

Duffy 2 Irish, Scottish
Anglicized form of Mac Dhuibhshíthe.

Duncan Scottish
From the given name Duncan.

Duncanson Scottish
Means "son of Duncan".

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.

Fallon Irish
Anglicized form of Irish Ó Fallamháin meaning "descendant of Fallamhán", a given name meaning "leader".

Fannon Irish
From the Irish Ó Fionnáin meaning "descendant of Fionn".

Farrell Irish
Anglicized form of Irish Ó Fearghail meaning "descendant of Fearghal".

Ferguson Irish, Scottish
Means "son of Fergus".

Findlay Scottish
Anglicized form of MacFhionnlaigh.

Finlay Scottish
Anglicized form of MacFhionnlaigh.

Finley Scottish
Anglicized (typically American) form of MacFhionnlaigh.

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. A famous bearer was Ella Fitzgerald (1917-1996), an American jazz singer.

Fitzpatrick Irish
Means "son of Patrick" in Anglo-Norman, usually adopted as an Anglicization of Mac Giolla Phádraig.

Fitzsimmons Irish
Means "son of Simon 1" in Anglo-Norman French.

Fitzwilliam Irish
Means "son of William" in Anglo-Norman French.

Flanagan Irish
From Irish Ó Flannagáin meaning "descendant of Flannagán". Flannagán is a given name meaning "blood red". From County Roscommon in Ireland, it has many other spellings.

Flanagon Irish
Variant of Flanagan.

Flannery Irish
Anglicized form of Irish Ó Flannghaile meaning "descendant of Flannghal", a given name meaning "red valour".

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".

Gilchrist Scottish
From Gaelic MacGilleChrìosd meaning "son of Gille Críst".

Gilmore Scottish, Irish
Anglicized form of Scottish Gaelic MacGilleMhoire or Irish Gaelic Mac Giolla Mhuire meaning "son of the servant of Moire".

Gilmour Scottish, Irish
Variant of Gilmore.

Gilroy Irish
Anglicized form of Mac Giolla Ruaidh or Mac Giolla Rí.

Glen Scottish
Variant of Glenn.

Glenn Scottish, English
From place names derived from Gaelic gleann "valley". A famous bearer was the American astronaut John Glenn (1921-2016).

Gorman 2 Irish
From the Irish Ó Gormáin meaning "descendant of Gormán". The given name Gormán means "little blue one".

Gough 2 Irish
Anglicized form of Irish Gaelic Mag Eochadha meaning "son of Eochaidh".

Grady Irish
From Irish Ó Gráda or Ó Grádaigh meaning "descendant of Gráda". The byname Gráda means "noble, illustrious".

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".

Hanegan Irish
Variant of O'Hannagain.

Hanigan Irish
Variant of O'Hannagain.

Hannigan Irish
Variant of O'Hannagain.

Hannigen Irish
Variant of O'Hannagain.

Hayden 2 Irish
Anglicized form of Ó hÉideáin or Ó hÉidín.

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 meaning "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 Irish, Scottish
Anglicized form of Mac Aodha.

Hyland 2 Irish
Variant of Whelan.

Hynes Irish
Variant of Hines.

Innes 1 Scottish
From a place name derived from Gaelic inis meaning "island".

Innes 2 Scottish
From the given name Aonghus.

Ivers English, Irish
Patronymic derived from the given name Ivor.

Joyce English, Irish
From the given name Joyce.

Kane Irish
Anglicized form of Ó Catháin.

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.

Kavanah Irish
Variant of Kavanagh.

Kavanaugh Irish
Variant of Kavanagh.

Kean Irish
Anglicized form of Ó Catháin.

Keane Irish
Anglicized form of Ó Catháin.

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.

Keeley Irish
Anglicized form of Irish Ó Caolaidhe meaning "descendant of Caoladhe", a given name derived from caol "slender".

Keely Irish
Variant of Keeley.

Kelley Irish
Variant of Kelly 1.

Kelly 1 Irish
Anglicized form of Irish Ó Ceallaigh meaning "descendant of Ceallach". Famous bearers include actor and dancer Gene Kelly (1912-1996) and actress and princess Grace Kelly (1929-1982).

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).

Kermit Manx
Anglicized form of Mac Diarmada (see McDermott).

Kermode Manx
Anglicized form of Mac Diarmada (see McDermott).

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 loch "lake".

Kilpatrick Irish
From the Irish Mac Giolla Phádraig meaning "son of the servant of Saint Patrick".

Kinley Scottish
Anglicized form of MacFhionnlaigh.

Kyle Scottish
Derived from Scottish Gaelic caol meaning "narrows, channel, strait", originally given to a person who lived by a strait.

Kyles Scottish
Variant of Kyle.

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 byname 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 Alastair Irish
Irish Gaelic form of McAlister.

Mac Amhalghaidh Irish
Irish Gaelic form of McCauley.

MacAmhalghaidh Scottish Gaelic
Scottish Gaelic form of McCauley.

Mac an Aba Irish, Scottish Gaelic
Gaelic form of McNab.

Mac an Baird Scottish Gaelic
Scottish Gaelic form of Mac an Bhaird (see Ward 2).

Mac an Bhaird Irish
Irish Gaelic form of Ward 2.

Mac an Fhilidh Scottish Gaelic
Scottish Gaelic form of McNeilly.

Mac an Ghoill Irish, Scottish Gaelic
Gaelic form of McGill.

MacAngus Scottish
Variant of MacInnes.

Mac an tSagairt Irish, Scottish Gaelic
Gaelic form of Taggart.

Mac Aodha Irish
Means "son of Aodh" in Irish.

Mac Aodhagáin Irish
Irish Gaelic form of Keegan.

MacAoidh Scottish Gaelic
Scottish Gaelic form of Mac Aodha.

MacAonghais Scottish Gaelic
Scottish Gaelic form of MacInnes.

Macaulay Scottish, Irish
Variant of McCauley.

Macauley Irish, Scottish
Variant of McCauley.

MacBay Scottish
Variant of MacBeth.

MacBeth Scottish
Derived from the Gaelic given name Mac Beatha meaning "son of life", which denoted a man of religious devotion. This was the name of an 11th-century Scottish king, and the name of a play based on his life by William Shakespeare.

Mac Branáin Irish
Means "son of Branán" in Irish. The given name Branán is a diminutive of Bran 1.

MacBride Irish
Anglicized form of Mac Giolla Bhrighde.

Mac Cába Irish
Irish form of McCabe.

Mac Cadáin Irish
Irish Gaelic form of Caden.

MacCailein Scottish Gaelic
Means "son of Cailean" in Gaelic.

MacCallion Scottish
Anglicized form of MacCailein.

MacCarrick Irish
Means "son of Cúcharraige" in Irish. The given name Cúcharraige is composed of cú "hound" and carraig "rock".

Mac Cárthaigh Irish
Irish Gaelic form of McCarthy.

MacCarthy Irish
Variant of McCarthy.

Mac Cionaodha Irish
Irish Gaelic form of McKenna.

MacCionaodha Scottish Gaelic
Scottish Gaelic form of McKenna.

Mac Cléirich Irish
Means "son of the clerk" in Irish.

MacClellan Irish, Scottish
Variant of McClelland.

MacClelland Irish, Scottish
Variant of McClelland.

MacClery Irish
Anglicized form of Mac Cléirich.

Mac Cnáimhín Irish
Means "son of Cnámh". The Irish given name Cnámh means "bone".

MacCoinnich Scottish Gaelic
Scottish Gaelic form of MacKenzie.

Mac Conmara Irish
Irish Gaelic form of McNamara.

MacConnell Scottish, Irish
Variant of McConnell.

Mac Cormaic Irish
Irish Gaelic form of McCormick.

MacCormaic Scottish Gaelic
Scottish Gaelic form of McCormick.

MacCoughlan Irish
Means "son of Cochlán". The given name Cochlán is derived from Irish cochal meaning "cape" or "hood".

Mac Cú Uladh Irish, Scottish Gaelic
Gaelic form of McCullough.

Mac Daibhéid Irish
Irish Gaelic form of McDevitt.

MacDaniel Scottish
Variant of MacDonald.

MacDermott Irish
Variant of McDermott.

MacDhòmhnaill Scottish Gaelic
Scottish Gaelic form of MacDonald.

MacDhubhghaill Scottish Gaelic
Scottish Gaelic form of MacDougall.

MacDhubhshìth Scottish Gaelic
Scottish Gaelic form of Mac Dhuibhshíthe.

Mac Dhuibh Scottish Gaelic
Means "son of Dubh", where the byname Dubh means "dark".

Mac Dhuibhinse Irish
Irish Gaelic form of Vincent 2.

Mac Dhuibhshíthe Irish
Means "son of Duibhshíth" in Irish. The given name Duibhshíth means "black peace".

Mac Diarmada Irish
Irish Gaelic form of McDermott.

Mac Domhnaill Irish
Irish form of MacDonald.

MacDonald Scottish
Anglicized form of Scottish Gaelic MacDhòmhnaill meaning "son of Donald". It originates from the Highland clan Donald.

MacDougall Scottish
Means "son of Dougal" in Gaelic.

MacDuff Scottish
Anglicized form of Mac Dhuibh.

Mac Eachairn Scottish Gaelic
Means "son of Eacharn", where the given name Eacharn is from the Old Irish name Echthigern.

MacEachern Scottish
Anglicized form of Mac Eachairn.

Mac Eoghain Irish
Means "son of Eoghan" in Irish.

MacEòghainn Scottish Gaelic
Scottish Gaelic form of Mac Eoghain.

MacFarland Irish, Scottish
Variant of McFarlane.

MacFhionnlaigh Scottish Gaelic
Means "son of Fionnlagh" in Scottish Gaelic.

Mac Fhlannchaidh Irish
Irish Gaelic form of Clancy.

Mac Ghabhann Irish
Means "son of the smith" in Irish.

MacGillEain Scottish Gaelic
Scottish Gaelic form of McLean.

MacGilleChrìosd Scottish Gaelic
Scottish Gaelic form of Gilchrist.

MacGilleFhaolain Scottish Gaelic
Scottish Gaelic form of McClelland.

MacGilleMhoire Scottish Gaelic
Scottish Gaelic form of Gilmore.

MacGinnis Irish
Variant of McGuinness.

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 McLean.

Mac Giolla Fhaoláin Irish
Irish Gaelic form of McClelland.

Mac Giolla Mhuire Irish
Irish Gaelic form of Gilmore.

Mac Giolla Phádraig Irish
Irish Gaelic form of Kilpatrick.

Mac Giolla Rí Irish
Means "son of the king's servant" in Irish.

Mac Giolla Ruaidh Irish
Means "son of the red-haired servant" in Irish.

MacGowan Irish
Anglicized form of Mac Ghabhann.

MacGrory Irish, Scottish
Variant of McCrory.

MacGuinness Irish
Variant of McGuinness.

MacGuire Irish
Variant of McGuire.

MacInnes Scottish
Anglicized form of Scottish Gaelic Mac Aonghais meaning "son of Aonghas".

Mac Íomhair Irish
Irish Gaelic form of McIver.

Mack 1 Scottish, Irish
Shortened form of various Irish and Scottish surnames beginning with Mac or Mc (from Irish mac meaning "son").

MacKay Scottish
Anglicized form of MacAoidh.

MacKenna Scottish
Variant of McKenna.

MacKenny Scottish
Variant of McKenna.

MacKenzie Scottish
Anglicized form of Gaelic MacCoinnich meaning "son of Coinneach". It originates from the Kintail area of Scotland on the northwest coast.

MacLean Scottish
Variant of McLean.

Mac Maghnuis Irish
Irish Gaelic form of McManus.

MacMathan Irish
Variant of McMahon.

Mac Mathghamhna Irish
Irish Gaelic form of McMahon.

Mac Naoimhín Irish
Means "son of Naomhán" in Irish.

MacNeachdainn Scottish Gaelic
Scottish Gaelic form of Mac Neachtain.

Mac Neachtain Irish
Means "son of Nechtan" in Irish.

MacNeil Scottish
Variant of McNeil.

Mac Néill Irish
Irish form of McNeil.

MacNèill Scottish Gaelic
Scottish Gaelic form of McNeil.

MacNevin Irish
Anglicized form of Mac Naoimhín.

Mac Niadh Irish
Means "son of Niadh" in Irish. The given name Niadh means "champion".