Browse Surnames

This is a list of surnames in which the usage is Celtic; and the first letter is M.

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Mac Alastair Irish
Irish Gaelic form of McAlister.

MacAlastair Scottish Gaelic
Scottish 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 Fleisdeir Scottish Gaelic
Scottish Gaelic form of Lister.

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

Mac an Tòisich Scottish Gaelic
Gaelic form of McIntosh.

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

Mac an tSaoir Scottish Gaelic
Gaelic form of McIntyre.

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.

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.

MacCàba Scottish Gaelic
Scottish Gaelic form of McCabe.

Mac Cadáin Irish
Irish Gaelic form of Caden.

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

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.

MacChruim Scottish Gaelic
Means "son of Crum", where Crum is a Gaelic byname meaning "bent".

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.

MacColuim Scottish Gaelic
Scottish Gaelic form of MacCallum.

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.

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.

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

MacEalair Scottish Gaelic
Scottish Gaelic form of McKellar.

MacEanruig Scottish Gaelic
Scottish Gaelic form of McKendrick.

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.

MacGriogair Scottish Gaelic
Scottish Gaelic form of MacGregor.

MacGrory Irish, Scottish
Variant of McCrory.

MacGuinness Irish
Variant of McGuinness.

MacGuire Irish
Variant of McGuire.

Mac Íomhair Irish
Irish Gaelic form of McIver.

MacIomhair Scottish Gaelic
Scottish 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").

MacLachlainn Scottish Gaelic
Scottish Gaelic form of McLaughlin.

MacLeòid Scottish Gaelic
Scottish Gaelic form of McLeod.

Mac Maghnuis Irish
Irish Gaelic form of McManus.

MacMathan Irish
Variant of McMahon.

Mac Mathghamhna Irish
Irish Gaelic form of McMahon.

MacMhaoilein Scottish Gaelic
Scottish Gaelic form of McMillan.

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.

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".

Mac Óda Irish
Means "son of Odo" in Irish.

Mac Pharlain Irish
Irish Gaelic form of McFarlane.

MacPhàrlain Scottish Gaelic
Scottish Gaelic form of McFarlane.

Mac Reachtain Irish
Ulster variant of Mac Neachtain.

Mac Ruaidhrí Irish
Irish form of McCrory.

MacRuaraidh Scottish Gaelic
Scottish Gaelic form of McCrory.

Mac Shuibhne Scottish Gaelic
Variant of Mac Suibhne.

Mac Síthigh Irish
Irish Gaelic form of McSheehy.

Mac Suibhne Irish
Means "son of Suibhne" in Irish.

MacTàmhais Scottish Gaelic
Scottish Gaelic form of McTavish.

Mac Thaidhg Irish
Irish Gaelic form of McCaig.

MacThaoig Scottish Gaelic
Scottish Gaelic form of McCaig.

Mac Uileagóid Irish
Irish Gaelic form of McElligott.

Madden Irish
Anglicized form of Ó Madaidhín.

Maddox Welsh
Derived from the given name Madoc.

Madigan Irish
Anglicized form of Ó Madaidhín.

Mag Aonghuis Irish
Irish Gaelic form of McGuinness.

Magee Irish, Scottish
Anglicized form of Mac Aodha.

Mag Eochadha Irish
Irish Gaelic form of McGough.

Magorian Irish
Possibly a variant of McGowan or McGovern.

Mag Raith Irish, Scottish Gaelic
Gaelic form of McRae.

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 Mathgamain".

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 meaning "descendant of a disciple of Saint John".

Manning 2 Irish
Anglicized form of Irish Ó Mainnín meaning "descendant of Mainchín".

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.

McAfee Scottish, Irish
Anglicized form of MacDhubhshìth.

McAlister Scottish, Irish
From Scottish Gaelic MacAlastair or Irish 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 byname meaning "cape, cloak" (from Latin cappa).

McCarthy Irish
Anglicized form of Irish Mac Cárthaigh meaning "son of Carthach".

McCauley Irish, Scottish
Anglicized form of Gaelic Mac Amhalghaidh or Mac Amhalghadha meaning "son of Amhalghaidh". The given name Amhalghaidh, from Old Irish Amalgaid, is of uncertain meaning.

McCleary Irish
Anglicized form of Mac Cléirich.

McClellan Irish, Scottish
Variant of McClelland.

McClelland Irish, Scottish
From Gaelic Mac Giolla Fhaoláin meaning "son of the servant of Faolán".

McConnell Scottish, Irish
Derived from Gaelic MacDhòmhnaill (see MacDonald).

McCormick Irish, Scottish
From Gaelic Mac Cormaic meaning "son of Cormac".

McCracken Irish, Scottish
Anglicized form of Mac Reachtain, Ulster Irish variant of Mac Neachtain.

McCreery Irish, Scottish
Variant of McCrory.

McCrory Irish, Scottish
Anglicized form of Gaelic Mac Ruaidhrí meaning "son of Ruaidhrí".

McCullough Irish
Anglicized form of Irish Mac Cú Uladh meaning "son of Cú Uladh". The byname Cú Uladh means "hound of Ulster". This surname has also been associated with Old Irish cullach "boar".

McCune Irish
Anglicized form of Mac Eoghain.

McDermott Irish
Anglicized form of Irish Mac Diarmada meaning "son of Diarmaid". The McDermotts were nobility in the Kingdom of Connaught, a province in Ireland.

McDevitt Irish
Anglicized form of Irish Mac Daibhéid meaning "son of Dáibhí".

McElligott Irish
Anglicized form of the Irish Gaelic name Mac Uileagóid meaning "son of Uileagóid", a diminutive of Uilleag.

McFarland Irish, Scottish
Variant of McFarlane.

McFarlane Scottish, Irish
Anglicized form of Scottish Gaelic MacPhàrlain or Irish Gaelic Mac Pharlain meaning "son of Parthalán".

McFee Scottish, Irish
Anglicized form of MacDhubhshìth.

McGee Irish, Scottish
Anglicized form of Mac Aodha.

McGill Irish, Scottish
Anglicized form of Gaelic Mac an Ghoill meaning "son of the foreigner", derived from gall "foreigner".

McGinnis Irish
Variant of McGuinness.

McGough Irish
Variant of Gough 2.

McGovern Irish
Anglicized form of Irish 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 Scottish, Irish
Anglicized form of Gaelic MacIomhair meaning "son of Íomhar".

McKee Scottish, Irish
Anglicized form of Mac Aodha.

McKeever Irish
Variant of McIver.

McKenna Irish, Scottish
Anglicized form of Gaelic Mac Cionaodha meaning "son of Cionaodh".

McKinney Irish, Scottish
Variant of McKenna.

McKowen Irish
Anglicized form of Mac Eoghain.

McMahon Irish
Anglicized form of Irish Mac Mathghamhna meaning "son of Mathgamain".

McManus Irish
Anglicized form of Irish Mac Maghnuis meaning "son of Mághnus".

McNab Scottish, Irish
Anglicized form of Gaelic Mac an Aba meaning "son of the abbot".

McNabb Irish, Scottish
Variant of McNab.

McNamara Irish
From Irish Mac Conmara meaning "son of Conmara". The given name Conmara is composed of cú "hound" and muir "sea".

McNaughton Irish, Scottish
Anglicized form of Mac Neachtain.

McNee Irish
Anglicized form of Mac Niadh.

McNeill Scottish, Irish
Variant of McNeil.

McNiven Irish
Anglicized form of Mac Cnáimhín.

McReynolds Scottish, Irish
Means "son of Reynold" in Gaelic.

McSheehy Irish
Anglicized form of Irish Gaelic Mac Síthigh, meaning "son of Sítheach".

Meaney Irish
Variant of O'Mooney.

Merrick Welsh
Derived from the given name Meurig.

Merricks Welsh
Variant of Merrick.

Meyrick Welsh
Variant of Merrick.

Milligan Irish
Anglicized form of the Irish Ó Maolagáin meaning "descendant of Maolagán", a given name derived from maol meaning "bald" or "tonsured".

Mohan Irish
Anglicized form of Irish Ó Mocháin meaning "descendant of Mochán".

Mollown Irish
Variant of Malone.

Molloy Irish
Anglicized form of Ó Maolmhuaidh or Ó Maol Aodha.

Moloney Irish
From Irish Ó Maol Dhomhnaigh meaning "descendant of a church servant".

Monaghan Irish
Variant of Monahan.

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.

Moran Irish
Anglicized form of Irish Ó Móráin meaning "descendant of Mórán", a given name meaning "great, large".

Morgan Welsh
Derived from the given name Morgan 1.

Moriarty Irish
From Irish Ó Muircheartach meaning "descendant of Muirchertach". This was the surname given by Arthur Conan Doyle to a master criminal 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, servant, tonsured one".

Mulligan Irish
Variant of Milligan.

Mullins 2 Irish
Variant of Mullen.

Mulloy Irish
Variant of Molloy.

Mulrennan Irish
Anglicized form of Ó Maol Bhréanáin.

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". This is the most common Irish surname.

Murray 2 Irish
Anglicized form of Irish Ó Muireadhaigh meaning "descendant of Muireadhach".

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