Where your folk
came from

MacGaffey
Associated with south Roscommon.

Gaffney
Connected to Keaveney, Caulfield, McCarron and Gaughney.
MacGaffrey
Variant of MacCaffrey. See Leitrim.
MacGagh
Seen in Mayo and Galway.
MacGahan
Or Gahon. Found in Dundalk and surrounding areas.
MacGahern
Found in Cavan. Linked to Gaughran.
MacGahey
Closely connected to the county Tyrone MacCaughey. Seen in Monaghan.
Galbraith
A Scots name popular in Ulster. See also Laois and Offaly.
Gallagher
One of the great clans of Donegal. Many different variants.
Gallen
Found in Donegal.
Gallery
Formerly MacGillereagh. See Clare.

Galligan
Originally Sligo and linked to Gilligan. Quite common name in Cavan.
Gallina
Or Gallinagh. On record in Donegal.

Gallogly
Gologly in Monaghan. A Donegal name often anglicised to English and Englishby.
Gallon
Seen in Leitrim.

Galvin
Or Galvan. A Clare sept now numerous in Kerry. See also Tipperary and Waterford.
Galway
Or Galwey. The ays obtain their name from the place name. The eys, especially in Ulster derived theirs from Galloway in Scotland.
Gamble
An old Cork family nowadays mostly recorded in Ulster.
MacGammon
A Clare name.

Ganly
Or Gantley. A variant of Shanley. Found in Galway.
MacGann
Linked to MacCann in Connacht.

Gannon
From MacFhionnáin, meaning fair. An old Mayo name, see also Leitrim and Galway.
O’Gara
Related to the O’Hara’s. Common in north Connacht.
Garragan
Found in Meath.
MacGarahy
A variant of Garrihy or Geraghty.
Garavan
See Mayo.
Gargan
Connected to Garrigan and found in Cavan and Meath.
Garland
Norman and common enough in Louth, Monaghan and north Meath area.
MacGarrahan
Or Garaghan. Recorded in Fermanagh, Cavan, Leitrim zone.
MacGarraher
A Donegal name. See also Roscommon.
Garrett
Usually of English origin and popular in the north east. Sometimes a synonym of Fitzgerald.
Garrigan
Related to Gargan. See Meath and Cavan.
MacGarry
In Leinster area, it is usually without the prefix. See Meath and Westmeath. Mac can be seen in north western counties of Mayo, Sligo and Donegal.
Gartlan
A Tyrone sept.

MacGarty
A variant of Geraghty found in Leitrim and Cavan.


Garvan
Also Garvin. Related to the Moriartys of Kerry. Now usually changed to Garvey in this part of the south west.
MacGarvey
A Donegal name also found in parts of west Tyrone.

Garvey
Related to the O’Hanlons in the Oriel counties. See Kerry.
Garvin
Often changed to Garvan. Originally Tyrone-Derry who migrated to Mayo.
Gately
Found in south Roscommon.
Gaughan
A north Connacht sept connected to Gahan and Gavaghan.
MacGauran
Related to MacGovern.
Gavaghan
Found in Roscommon and Mayo.

Gavan
Or Gavin, which is the most common. Found in Mayo. See also Westmeath.
Gavigan
A variant of Gavaghan and regularly seen in Donegal. Also other parts of the north west.
MacGawley
See MacAuley.
Gaynor
From MacFhionnbhairr which means fair headed one. See Longford.
MacGeady
On record in Donegal.
MacGeagh
Found in Derry and Donegal.
MacGeaney
Or Geeney. A south Armagh name.
O’Geaney
Popular enough in Cork.
MacGearn
From the Glenties area of Donegal.
MacGearty
See Garty.
Geary
Usually associated with Cork.
MacGee
MacAoidh, son of Hugh and generally a Donegal name. Spelt Magee in Antrim.
MacGeehan
Another Donegal clan, sometimes spelt Mageean.
Geelan
Seen in Leitrim.


Geoghegan
Rarely Gehegan. Related to the O’Neills. Generally found in the midland areas of Westmeath, Offaly and Galway.
George
English and seen mostly in Ulster.

MacGeough
Or MacGough. A Louth, Down, Monaghan, Armagh name.
MacGeown
Linked to MacKeown.



Geraghty
MacAireachtaigh which means a member of assembly. Many variants including Geretty and Garrity. Popular in Roscommon, Mayo and Galway.
Gerrard
English but could be linked to Fitzgerald.
MacGetrick
Found in Sligo.
MacGettigan
Originally Tyrone, now mostly Donegal and neighbouring parts of Derry.
Getty
Could be from the Scottish Dalgetty or the Irish MacEitigh. See the north eastern counties.
MacGhee
A Scottish form of MacGee.

Gibbons
A branch of the Connacht Burkes or from the Norman Fitzgibbon. Common in Mayo.
Giblin
Ecclesiastics from the diocese of Elphin in Roscommon.

Gibney
From O’Gibne which means a lock of hair. Most Gibneys can trace their ancestry back to the north Meath village of Moylough.
Gibson
Scottish and a branch of clan Buchanan. Numerous in eastern counties and Belfast area.
MacGiffen
Regularly seen in Antrim, Derry and Tyrone.
MacGifford
Scottish. See Down.
Gilbert
English and seen in Louth and Meath.
Gilbey
English but O Giolla Bhuidhe is often anglicised to read Gilboy.
Gilchrist
See the Sligo, Leitrim, Roscommon and Longford area.
Gildea
A popular Donegal sept.
Gildowney
Linked to MacEldowney and Muldowney.
Giles
Usually of English origin. Sometimes though the anglicisation of O’Glaisne. See Meath.
Gilfoyle
Or Guilfoyle. Originally from Ely O’Carroll country in Offaly. Check Clare area.
Gilgan
From north Leitrim and Sligo. No connection to Gilligan.
MacGilheany
Seen in Cavan.
Gilhooly
From the Leitrim-Roscommon sector and closely linked to Mulvey.
Gill
Or MacGill or Magill in Down area. See Mayo.
Gillan
Or Gillen. From giolla meaning boy. From north western counties of Sligo, Donegal and Tyrone.
Gillanders
A Monaghan name.
MacGilleece
A variant of MacAleese in west Ulster.
Gilleen
Or Gillan and Gillen.
Gilleran
A Roscommon name.

Gillespie
MacGiolla Easpuig (bishop). Originally Down, now popular in Donegal.
MacGillick
Related to the Burkes of Connacht. Common in Cavan where the prefix is often left out.

MacGilligan
A leading Derry family where it is often spelt Magilligan. Gilligan itself can be seen in numbers around the Sligo-Mayo area.
MacGilliland
Found in east Ulster, linked to MacLellan.
Gillis
Scottish, sometimes used for MacAleese.
Gillooly
See Gilhooly.

MacGillycuddy
A branch of the O’Sullivans and always associated with Kerry.
Gilmartin
Related to the O’Neills of Fermanagh and Tyrone. Kilmartin in Connacht.
Gilmore
Common in Ulster, especially Down. Also seen in Connacht.
Gilna
Or Gilnagh. Seen in Roscommon and Longford.

Gilpatrick
An anglicisation of MacGiolla Phadraig. Linked to Fitzpatrick.
Gilpin
On record in parts of south Ulster.

Gilroy
Close relation of MacElroy and MacIlroy. Kilroy in Connacht. See Tyrone and Fermanagh.
Gilsenan
Originally Tyrone but now mostly associated with the Meath-Cavan area. A close relation of Leonard and Nugent. Also Shannon.
Gilson
Connected to Gilsenan.

MacGilvarry
On record in north Connacht and Donegal.
MacGimpsey
Numerous in the Newtownards area of north Down.
MacGing
Used in Mayo and Leitrim. It becomes MacGinn in Tyrone and Maginn in east Ulster.
MacGinley
A Donegal name not connected to MacKinley.
Ginnane
From west Clare. Popular throughout Tipperary and Offaly where it is usually spelt Guinane or Guinan.
Ginnell
Seen in Westmeath.
MacGinnis
Also and usually MacGuinness. MacAonghusa (son of Angus). A great Down clan well known in the business world. See MacGenis and Magennis.
MacGinty
A Donegal sept, often changed to MacGinnity in Monaghan and Fermanagh, to Ginity in Meath and Ginty or Genty in north Connacht.
MacGirl
Sometimes anglicised MacGarrell. Found along Cavan-Leitrim border. Lined to MacCarrigle in Donegal.
MacGirr
An Armagh-Tyrone name where it often became Short.
Given
Associated with Donegal.


MacGivern
A popular Down name, seen in neighbouring parts of Armagh and Louth. Amazingly related to Biggar and Montgomery.
MacGinney
A Cavan name with links to MacAvinna, MacAvinue and MacEvinney.
Glacken
Popular in Donegal.
Gladdery
Seen in Galway and Tyrone.

MacGlade
Linked to both the Scottish MacLeod and Gladdery.
Glanville
Norman and on record in Munster counties.

Glasgow
Connected to MacCloskey. Also Scotland and the city. See Tyrone.
Glashan
A Derry name often anglicised to Green.
Glasheen
Seen in Cork and Tipperary.
Glass
From the Irish glas (green) and associated with Antrim and Down.
Glavin
With the Mac an Ulster family, without it is usually found in Cork and Kerry.
MacGlavy
Or Glave. From MacLaithimh. Lamh means hand and hence the anglicisation to Hand.
MacGleen
Connected to MacGlynn in east Connacht.
MacGleenan
Found in Armagh and Tyrone
Gleeson
A popular Tipperary name. See also Kerry.
Glenane
Found in Tipperary.
Glendenning
Scottish and found in the north east. Also Offaly.
Glendon
Or Glindon. Forms of MacLindon and MacAlinden in Down and Armagh.
Glennon
Leann means cloak and is quite numerous in the Westmeath-Offaly area.
MacGlew
Found in Louth and connected to MacAleavy and MacLeod.
MacGlinchy
A Donegal, Derry, Tyrone version of Lynch.
MacGloin
Or Glone or Gloon. A Donegal, west Tyrone name. Also found in Leitrim.
MacGlory
Or Glowry. An Antrim, Armagh, Down name. Also see Kilkenny.
Glover
English and common enough in Ulster.

MacGlynn
Usually without the prefix and common enough in east Galway.
Godfrey
An English name but most Irish of this name are from MacGothraidh, a branch of the Maguires in Fermanagh. This is also anglicised to read MacCorry, MacCurry, MacGorry. Also linked to Gohery and MacGoffrey.
Godwin
Or Goodwin. Are usually the anglicisation of O’Dea in Connacht, McGoldrick in Tyrone and MacGuigan, both in Tyrone and Derry.
MacGoey
Found in Leitrim and Longford.

Goff
Connected to Gough. See the south east, Dublin and Meath.
Gogan
Or Goggin. A form of Cogan in Cork. For Goggin see Meath.
Gogarty
No relation to Fogarty and found in Meath.
Gohery
From the Norse name Gothfrith. Often changed to Godfrey. See Tipperary-Offaly.
Going
On record in Tipperary.
Golden
Or Goulding. Generally the anglicisation of Ó Góilín in Cork. Or MacGoldrick in Leitrim. For Golden see Mayo.
MacGoldrick
Often without the D. See Fermanagh-Leitrim-South Donegal area.
Gologly
See Gallogly.
MacGonigal
Or McGonigle. A Donegal name.
Gonne
Different interpretations to origin.
MacGonnell
See MacConnell.
Gonoude
A synonym of Conway in the Offaly-Westmeath area.
Good
English and common enough in Cork. See also Laois.
Goodbody
A well known Offaly business family.

Goodfellow
Said to be the anglicisation of MacUiginn (MacGuigan) in Tyrone.
Goodman
Associated with Dublin. English origin.
MacGoohan
Recorded in Leitrim.
Goold
Or Gould. English and usually seen in Cork.
Goonan
A Clare name linked to Gunning.
MacGoarty
Or MacGourkey. Sometimes anglicised to Darcy. See Fermanagh and Leitrim.
Gordon
Scottish and fairly popular in Ulster. Connected with the Down-Antrim name Magournahan.
Gore
A prominent Anglo-Irish family and seen in the Mayo-Sligo sector as well as Clare and Meath.
Gorevan
See also Gorovan and Gooravan. Also Garvin. Perhaps MacGovern. Found in Sligo and Mayo.
Gorey
No connection to the Wexford town. Linked to Gorry and Gurey. Gorry is common enough in Meath and Westmeath.
Gorham
Sometimes from O’Guarin. Generally English. See Kerry and Louth.
MacGorish
Seen in Monaghan.

MacGorman
Or O’Gorman in Munster and particularly the Clare area. Macs are found in Monaghan.
Gormley
Or Gormally. A well known Tyrone name. Sometimes linked to Gorman and Grimes.

MacGorry
A branch of the O’Reillys seen in Cavan.

Gorry
See Gorey.
Goslin
Or Gosling. Recorded in Meath-Louth area.
Gough
At times linked to MacGeough. A Welsh family of the name Goch came to Ireland in the thirteenth century. See Meath.
Gould
See Goold.

Goulding
See Golden.
MacGourley
Linked to MacTurley in Antrim and Tyrone.
MacGovern
Or MacGovarn, Gowran and Magauran. A north Cavan name.
Governey
Seen in Carlow and surrounding areas.
Gow
From Gabha which means blacksmith. Changed to Smith in Cavan and Meath.
MacGowan
In Cavan most MacGowans were anglicised to Smith. Still found around the Breffni county.
O’Gowan
An Armagh-Down clan also changed to Smith.
Grace
Norman and usually associated with Kilkenny.
Graddy
Seen in Cork.
MacGrady
A Down name.
Grady
Generally found with the prefix O. Seen in large numbers in Clare and in the Sligo-Mayo sector.
Graham
Scottish and popular not alone in Ulster but throughout. See Gormley and Grehan for connections.
Grainger
Common in Antrim area.

MacGranahan
Or Grenaghan. Usually associated with Donegal.
MacGrane
Found in north Leinster and south Ulster. Often spelt MacGrann.
MacGraney
Or Granny. See Antrim, sometimes changed to Grant.
Granfield
Or Granville and Grandfield. Associated with Kerry.
Grant
Scottish but common and especially throughout the eastern part of Ireland.
MacGrath
Or Magrath. Sometimes MacGraw in Down and MacGragh in Donegal. Two main bodies. The Clare-Waterford area. Part of this clan migrated to Waterford while the other sept marks Donegal as its homeland.
MacGrattan
Generally seen in the north Ulster area.



Graves
Or Greeves and Greaves. English and on record in Tyrone, Cork and Offaly.
Gray
English but those in Connacht and Longford are from the Irish Culreavy.
MacGread
Or Grade. Seen in Donegal and Tyrone. Sometimes a synonym of McGrath.
MacGready
A Mayo-Roscommon clan. Strong links to Grady.
MacGreal
Related to the MacNeills-Galloglass family who settled in north Connacht.
Grealish
A Galway name.
Greally
Connected to O’Reilly. From Galway-Mayo.
Greaney
A popular enough Kerry name.
MacGreen
Seen in west Clare.
Greenan
On record in Cavan, Monaghan and Sligo.
Greene
English but most times in Ireland the anglicisation of such names as Guerin, Greenan, Mac Glashan, Fahy, Mac Green and Houneen.
Greer
Connected to the Scottish MacGegor. Again see Ulster.

MacGreevy
A respected Roscommon-Leitrim sept.
MacGregan
Seen in Wicklow and Wexford.
Gregory
An English family, long time associations with Kerry and Galway.
Grehan
The very mid sector - counties Offaly, Westmeath and Roscommon is their home.
MacGrellis
An Ulster name linked to Grealish.


Grennan
O’Grianóin. Grian means son. Seen in Mayo and Monaghan. In Offaly area it is of Norman origin.
Gribben
Found in Derry, Antrim, Armagh and Down.

Griffin
A south Kerry name. See also Clare and Limerick.
Griffith
Usually Welsh.

Grimes
Both English and Irish origins. Popular enough in Ulster and Louth-Meath area.
Grimley
An Armagh version of Gormley.
MacGriskin
Seen in Leitrim.
Groarke
Or Grourke is found in Mayo.
MacGroarty
Long time association with Donegal.
Groden
The anglicisation of Mag Rodáin in Connacht.

MacGroddy
Found in Donegal. Often spelt MacGroudy or MacGruddy there.
Grogan
A Roscommon-Offaly clan sometimes titled Grugan and Groggan in parts of Ulster.
MacGrory
Ulster and linked to MacRory.
MacGrotty
Belongs to the Derry-Tyrone borderline.
MacGrowder
Or Grodder and Groder. Seen in Monaghan.
Growney
A form of the Oriel MacCarron. Found in Meath and Westmeath.
MacGuane
A Clare name
Gubbins
From the Irish O’Goibín (meaning big mouth) in the north west but from the French Giboin or German Gebawin in Limerick.
MacGuckin
A Derry-Tyrone name while Guckian is associated with Leitrim.
Guerin
Huguenot and Irish origins. Seen in goodish numbers in the Limerick area. Changed to Geran or Gerin in Kerry. Connected to MacGivern in Down.
Gurdera
Or Guider. Seen in north Tipperary.


MacGuigan
A very common Tyrone name. Also seen in large numbers in neighbouring south Derry. Connected to MacGoogan, MacGookin, MacGuckian, MacQuiggan, MacWiggin and both Fidgeon and Pidgeon in Monaghan.
Guihan
Or Guiheen. A Roscommon clan. See also Kerry.


Guilfoyle
See Gilfoyle.

MacGuill
No connection to MacGill. On record in Armagh.
Guiney
Found in Kerry and Cork.

MacGuinness
Spelt MacGenis and Magennis. A powerful Down sept.
MacGuire
Or the equally popular Maguire. Originally an influential Fermanagh clan who spread into neighbouring areas of north Cavan.
MacGuirk
Or Gurk. A Tyrone sept and nowadays found also in large numbers in Derry. On record as Gurk in Meath.
Guiry
See Limerick and Waterford.
Guissane
On record in west Clare. See Kissane.
MacGullian
Or Magullian and found in Leitrim and Longford.


Gunn
Can be English or Scottish. However most Irish Gunns are an abbreviation of Gilgunn and MacElgunn.
Gunnell
A synonym of MacGonigal. See Louth.

Gunning
A common name in Offaly. In Ulster it is usually of English origin.
Gunshenan
See Longford.
MacGurk
See MacGuirk.
MacGurnahan
Found in Down.
MacGushen
On record in Leitrim.
Guthrie
Scottish but a synonym of Lahiff in Clare.
Guy
French. See Meath.
Gwynn
Welsh origin. Dublin area.