Where your folk
came from

Lacy
Often de Lacy. Normans who were lords of Meath. Name still found in Royal County. Also Limerick, Tipperary area.
Lade
Or Laide. Found in Kildare and Kerry.

Laden
A version of Leyden in Leitrim.
Laffan
A Norman family who settled in Wexford.
MacLafferty
Connected to MacLaverty. See Donegal.
Lagan
A Derry-Antrim version of Logan.
Laherty
Like Lahart a Tipperary, Kilkenny name.

Lahiff
Found in Clare. Related to Flahive in Kerry and the north Connacht name Laffey.
Laird
Scottish and recorded in north eastern counties.
Lally
A Galway name connected to Mullally.
Lalor
Or Lawler. One of the Seven Septs of Leix. Still a very common name in this part of the midlands.

Lambe
English but most bearing this name were once O Loane. See Meath, Louth, Armagh and Monaghan area.
Lambert
Families of this English name settled in Wexford, Mayo and Galway.
Lamont
Scottish and popular in the north east.
Landers
From the Norman de Londres. On record in south Munster counties of Waterford, Cork, Kerry. Also Clare.
Landy
Normans who settled in Kilkenny and Tipperary. See also Ardee area of Louth.
Lane
English but the majority are the anglicisation of such as Lehane, Lyne and Lyons. found in Tipperary and also in Cork and Limerick.
Lang
A branch of the Scottish clan Leslie and popular in north east Ulster.
Langan
A Mayo name.
Langton
One of the Tribes of Kilkenny.
Lanigan
Very much a Kilkenny name.
Lannon
A Kilkenny version of Lennon.
Lappin
A Donegal clan who migrated to Tyrone. Seen also in Meath. Connected to De Lap.
Lardner
Found in Galway. English but here it is the anglicised version of Lorgnáin.
MacLardy
A branch of the Scottish clan MacDonald. Seen in north east.

Larkin
From O’Lorcáin, lorc means fierce. Numerous and found in areas such as Galway, Louth, Tipperary, Kilkenny and Wexford.
Larmour
Or Larmer and Armour. French origin and popular in northern counties.
MacLarney
A version of Mullarney found in Monaghan.
MacLarnon
A devotee of St Earnan, a Down name with connections to MacLernon, MacLarnan and MacClarnon.
Larrissey
Originally Mayo but in later years a Kilkenny name.
Latchford
Seen in Kerry.

Latimer
Probably Scottish and on record in Cavan, Monaghan region.
Lavelle
A north Connacht, Donegal clan. See also Monaghan, Armagh sector.
Laverty
Or Lafferty. Fairly popular in Donegal and Tyrone.
Lavery
Or Lowry. Very much an Ulster name with special concentration in Down and Antrim.
Lavey
A version of Leavy in Westmeath and Longford.
Lavin
A Roscommon, Mayo clan often changed to Hand.
Law
English and generally located in the north east.
Lawler
Or Lawlor. See Lalor.

Lawless
Arrived with the Normans and became one of the Tribes of Kilkenny.
Lawn
From O’Liatháin which is also Lehane in Cork. See Donegal, Tyrone area.
Lawrence
Or Laurence. English and with a reasonably wide spread.
Lawson
English and Ulster counties.

Lawton
English though the anglicisation of O’Lachtnáin in Cork.
Leacy
A variant of Lacy.


Leahy
Very numerous in Munster area, particularly counties Cork, Tipperary and Kerry. From O’Laochdha which means brave.
Leamy
A north Tipperary name.
Leane
Found in Kerry
O’Leary
One of the great Irish names. Always associated with Cork.

Leavy
Or Levy. Related to the O’Farrells of Longford. Still numerous in this county and neighbouring Westmeath.
Lecky
Scottish and recorded in Derry and Donegal.
Leddy
A Cavan version of Liddy.
Ledger
A Palatine name in Limerick. Otherwise a version of St Leger.

Ledwich
Or Ledwidge. An English family who settled in east Meath circa 1200. Still associated with Royal County.
Lee
English but most Irish bearing this name are native. Usually the anglicisation of MacLaoidhigh or Mac an Leogha. Connected to the Galway O’Flahertys and other identified locations include north Connacht and the Limerick-Cork sector.
Leech
From the French Leche which means physican. Linked to Lee in Galway. See Dublin-Drogheda area.

Leeper
English family who settled in Donegal 300 years back.
Leeson
English but thought to have connections with O’Lishane which became Gleeson.
Leevy
See Leavy.

Legge
English and found in Ulster. Also the anglicised version of Mac Coise (cos means foot).
Lehane
Originally Limerick, nowadays mostly associated with west Cork.
MacLellan
Or Clelland and Leland are mostly of Scottish extraction.
Lemass
From the French le Maistre. On record in Carlow and Dublin.
Lemon
English and common enough in Ulster.
Lenihan
Or Lenaghan and Linehan. Quite numerous in the Cork-Limerick sector. See also Roscommon.
Lennane
Or Linnane. Connected to Lennon. Seen in Clare-Limerick-Galway region.
MacLennon
Scottish origin and Ulster as a habitat.



Lennon
Sometimes Lennan. From O’Leannáin (leann means cloak). Connected to the Galway Linnane. Most of this clan can be found in the Armagh, Down, north Louth area.
Leonard
An English name but in Ireland usually the anglicisation of Linneen, Linnane, Lennon, Lunny and Gilsenan.
Lerhinan
Or Lernihan is on record in Clare.

Leslie
A Scottish family who settled in north Monaghan.

Lestrange
The anglicisation of Mac Conchoigcriche (border hound) in Westmeath.
Lett
Arrived with Cromwell to Wexford. See also Carlow where it is probably from the Norman De Leyt.
Levens
Or Levins. A well known Louth name.

Levis
Connected to MacConlevy and found in west Cork.
Lewis
Common enough English name.
Ley
One of the Tribes of Kilkenny.
Leyden
Or Lydon. A popular Galway-Mayo clan.
Liddy
A Clare-Limerick name. Connected to Leddy in Cavan.
Lillis
A Clare, Limerick variant of Lawless.
MacLilly
Connected to the MacGuires of Fermanagh.

Linden
A version of the popular Oriel name MacAlindon. See Monaghan, Armagh and Down.
Lindsay
Often of Scottish origin but many bearing the name O Loingsigh in northern counties were anglicised to read Linchey and subsequently Lindsay.
Linnane
See Lennane.


Lipsett
From the German Lipsitz. Seen in Donegal.
Lister
Or Lyster. English or Scottish origin.
Liston
From the Norman de Lexinton who settled in the Limerick, north Kerry area.

O’Loan
Or Loane. From O Luain (luan means hound). See northern counties of Derry and Antrim. Connected to Lambe in Oriel area.
Locke
Usually English but sometimes the anglicisation of O’Loughlin.
Loftus
English but in Mayo where the name is quite numerous it is a version of Loughnane.
Logan
Can be Norman, Scottish or a variant of the Irish Lohan.

Logue
Or Loogue. The anglicisation of O Maolmhaodhóg and found mainly in Donegal and Derry. Connected to Leech and Molloy.
Lohan
Or Loughan and Loghan. Migrated from Westmeath to the Clare, Galway borders.
Lomasney
Seen in Tipperary.
Lonergan
Or Londrigan. A well known Tipperary family.


Long
Mostly found in Cork-Kerry region. These belong to an erenagh family. Can be English or from the Norman de Long in other parts.
Looby
Or Luby and on record in Tipperary.

Loonan
Or Loonane. Connected to Longford and Donegal.
MacLoone
From the Glenties area of Donegal.
Looney
A Clare name.
Looran
Or Loran. Found in Westmeath and Meath as substitutes for Loughran.
Lord
An English name but sometimes a synonym of Kiernan and Tierney.
Lordan
A west Cork name.

O’Losty
Associated with Donegal. Variants include Lasty, Lusty and Lastly.
MacLoughlin
Spelt Mac Laughlin in Derry. A popular Donegal clan of Norse extraction who had strong links to the O’Neills.
O’Loughlin
An important Clare sept.

Loughman
Linked to Loughnane and long time association with Laois and Kilkenny.
Loughnane
Various branches and most regularly seen in Clare-Tipperary belt.
MacLoughney
Or Maloughney. A north Tipperary, south Offaly clan who often became Molony.
O’Loughney
A Mayo name usually changed to Loughnane.
Loughran
A popular Armagh family who spread to neighbouring counties.
Loughrey
Generally found in northern counties.
Louth
Or Louthe. English and no connection with the county although it is found there.

Love
Common in Derry. Generally English origin but could come from the Irish Mac Grath (Gradh means love).
Lovell
English and linked to Kilkenny sector.

Lovett
A relative of the French Lyvet and long established in Kerry.
Lowney
A west Cork clan.
Lowry
See Lavery.
Lowther
A north of England name. A family arrived in Fermanagh shortly after the Plantation.
MacLoy
Seen in Oriel counties.
Lucas
English and scattered.
Lucey
A well known Cork family. See also Kerry.
Lucid
On record in Kerry.

Ludden
A variant of Lydon in counties Galway and Mayo.
Luddy
A Cork form of Liddy.

Ludlow
An English family with connections in Meath and Louth. Also Cork.
Lundy
Seen in northern counties. From the Norman de la Lounde.
Lunn
Check Antrim area. English.
Lunney
Originally Tyrone. Also adjoining parts of Cavan and Leitrim.
Lurigan
A variant of Lonergan in west Clare.
Luttrell
From the French le Latrel which means otter. Found mostly in the Dublin sector.
Lydon
See Leyden.
Lyle
Could be from the Irish O’Laoighill. Common enough in Derry and Antrim. Came from Scotland.

Lynagh
Once Galway and Mayo. From Laighneach, meaning Leinsterman. Nowadays see Meath and Westmeath.
Lynam
Or Lynan. Originally south Leinster counties of Wexford and Carlow. Popular Trim, Co. Meath name.



Lynch
Two origins. One the Norman de Lench who settled in Summerhilll, Meath. They migrated to Galway city and became the dominant family there. The most numerous is the Irish O’Loingsigh with density pockets in Cork-Kerry, Cavan-Meath and Clare.
Lynchehan
Mac also used. Now mostly Lynch. See Tyrone and Donegal.
MacLynch
A Donegal variant of MacGlinchey.
Lyne
A well known Kerry clan. Sometimes spelt O Leane. Often changed to Lyons.
Lyness
English family with wings in Down and Antrim.
Lyng
Or Ling. Associated with the Wexford, Kilkenny area. Probably related to the O’Floinns of Waterford.
Lynn
An Antrim form of Flynn.

Lynskey
A Galway, Mayo relative of Lynch.

Lyons
English but most Irish bearing this name can trace their roots back to Cork. Connected to Lehane, Leane and Lyne.
MacLysaght
A Clare family closely related to the dominant O’Briens. See also Limerick.