surnames.ie

Irish surname · 20th most common in 1911

Lynch

Lynch has two separate origins. Most Irish Lynches descend from Ó Loingsigh, 'descendant of Loingseach', a personal name linked to loingeas, 'a fleet', borne by several unrelated Gaelic families. Others descend from the Norman de Lench family, who settled in Meath and became one of the Tribes of Galway.

Irish Ó LoingsighIrish de LínseIrish Ó LoingseacháinIrish Ó Loinscigh
1901 census
18,102
#18 · 41 per 10,000
1911 census
17,615
#20 · 40 per 10,000
1926 census
16,065
#15 · 54 per 10,000
Most numerous
Cork
Highest share: Cavan

Language & meaning

Meaning & Irish forms

Gaelic & Norman (separate origins) Gaelic Irish (Ó Loingsigh and Ó Loingseacháin, several unrelated septs) and Hiberno-Norman (de Lench, later one of the Tribes of Galway), sharing one English spelling.[1][2][3]

Ó Loingsigh
“descendant of Loingseach”[1][3]
The main Gaelic source of the name, used by several unrelated families. Early anglicised spellings include O Lynchy and Linchy.
de Línse
“of Lench (Norman 'de Lench')”[2][4]
The Gaelicised form of the Norman name borne by the Galway Lynches. Woulfe also lists the form 'a Línse'.
Ó Loingseacháin
“descendant of Loingseachán (a diminutive of Loingseach)”[5]
A separate Donegal and Sligo name that Woulfe says was by his time nearly always rendered Lynch.
Ó Loinscigh
“a Galway variant of Ó Loingsigh”[6]
Woulfe explains it as a Co. Galway form with the consonants transposed; it gives Lynskey and Linskey.

The name is built on the personal name Loingseach, usually explained as “having or belonging to a fleet; a seafarer”. Woulfe derives it from loingeas, 'a fleet'; Wiktionary traces it to long, 'a ship'.[1][7]

Pronunciation

Lynch: LINCH

Place

Where the Lynchs lived

How common the name was in each county, as a share of the population, in the three surviving full censuses of Ireland. Use the buttons to compare years.

Donegal: 36.2 per 10,000 (611 people) Waterford: 38.6 per 10,000 (318 people) Dublin: 36.5 per 10,000 (1,755 people) Kilkenny: 19.4 per 10,000 (146 people) Carlow: 20.6 per 10,000 (75 people) Limerick: 72.4 per 10,000 (1,037 people) Louth: 53 per 10,000 (334 people) Tipperary: 19.7 per 10,000 (301 people) Roscommon: 39.4 per 10,000 (370 people) Meath: 155.6 per 10,000 (1,015 people) Wicklow: 26 per 10,000 (158 people) Cavan: 209.5 per 10,000 (1,914 people) Cork: 78.9 per 10,000 (3,102 people) Clare: 98.3 per 10,000 (1,027 people) Galway: 21.8 per 10,000 (397 people) Mayo: 13.4 per 10,000 (258 people) Sligo: 22.1 per 10,000 (175 people) Leitrim: 29.5 per 10,000 (186 people) Offaly: 24.8 per 10,000 (141 people) Laois: 22.3 per 10,000 (122 people) Kildare: 24.5 per 10,000 (164 people) Kerry: 102.2 per 10,000 (1,633 people) Monaghan: 18.7 per 10,000 (134 people) Wexford: 10.1 per 10,000 (103 people) Longford: 54.3 per 10,000 (238 people) Westmeath: 80.9 per 10,000 (487 people) Tyrone: 19.9 per 10,000 (284 people) Antrim: 4 per 10,000 (192 people) Armagh: 7.5 per 10,000 (90 people) Fermanagh: 29.7 per 10,000 (180 people) Londonderry: 34.1 per 10,000 (476 people) Down: 6.3 per 10,000 (192 people)
fewerup to 211 per 10,000

Share of each county's census population. 1926 covers the 26 counties of the Irish Free State only.

Highest concentration · 1911

Cavan

210 per 10,000

1,914 Lynchs · 5.22× the national share

Highest share, 1911

  1. Cavan 210
  2. Meath 156
  3. Kerry 102
  4. Clare 98
  5. Westmeath 81
  6. Cork 79
  7. Limerick 72
  8. Longford 54

Per 10,000 residents. A concentration index above 1 means the name was commoner there than nationally.

County figures as a table
County190119111926Per 10k 1901Per 10k 1911Per 10k 1926
Antrim185192—44—
Armagh9090—78—
Carlow837564222119
Cavan2,0411,9141,737210210211
Clare1,1801,02796510598102
Cork3,0713,1022,954777981
Donegal620611582363638
Down175192—66—
Dublin1,6501,7552,045383741
Fermanagh162180—2530—
Galway442397417232225
Kerry1,7031,6331,613103102108
Kildare154164174252530
Kilkenny133146162181923
Laois129122129232225
Leitrim228186231333041
Limerick1,1031,0371,113757280
Londonderry487476—3434—
Longford235238203505451
Louth340334375525360
Mayo308258179161310
Meath1,0691,015923152156148
Monaghan146134187201929
Offaly13714195232518
Roscommon422370379423945
Sligo165175162212223
Tipperary286301331182024
Tyrone240284—1620—
Waterford373318311433940
Westmeath486487482788185
Wexford8510312481013
Wicklow174158128292622

Local strongholds in 1911

District Electoral Divisions (300+ residents) where Lynchs made up the largest share of the population. In Slieveragh, Co. Cork, about one resident in 10 was a Lynch.

DEDCountyLynchsShare
SlieveraghCork95 10.2%
NewcastleMeath72 9.8%
BallyjamesduffCavan162 9.6%
ClydaghKerry41 9.3%
CanningstownCavan109 9.2%
RahonaClare81 8.6%
FurroorClare53 8.3%
TeltownMeath40 7.9%

Origins

Septs & territories

Many Irish surnames were adopted independently by unrelated families. These are the distinct Lynch lineages described in the sources.

A surname can point you towards a place. On its own, it cannot establish a pedigree.

Ó Loingsigh of Dál Riata (Dalradia)

Dál Riata in north-east Ulster · Antrim, Down

Woulfe calls this once a very important family: chiefs of Dál Riata in the 11th century, frequently named in the annals. They lost their position when the Anglo-Normans invaded Ulster, but the name stayed common in Antrim and Down.[1][3]

Ó Loingsigh of Uaithne (Owney)

Uaithne-thíre, the barony of Owney · Tipperary

Before the Anglo-Norman invasion they were chiefs of Uaithne-thíre. They were later displaced by the O'Mulryans.[1]

Ó Loingsigh of Breifne

Cinél Bacaid in Breifne · Cavan

Woulfe describes a strong clan who were chiefs of Cinél Bacaid and were still numerous in Co. Cavan in his day. Wikipedia places this Breifne family in Leitrim instead.[1][3]

Ó Loingsigh of Thomond

Thomond · Clare, Limerick

A Dalcassian family, which Woulfe found still numerous in Clare and Limerick.[1][3]

Ó Loingsigh of Corca Laoighdhe

West Cork · Cork

A branch of the Corca Laoighdhe, originally seated in West Cork. Woulfe adds that in Cork, as in Donegal and Mayo, Ó Loingsigh is often a shortened form of Ó Loingseacháin.[1][3]

Ó Loingsigh of Sligo and of Meath

Sligo, Meath

Woulfe lists a Sligo family belonging to the Uí Fiachrach and a further family in Meath, but gives no detail about either.[1]

Ó Loingseacháin

Donegal, Sligo

Two families: one of the Cinél Eoghain, claiming descent from Loingseach, a king of Ireland, and seated in Donegal; the other of the Uí Fiachrach in Sligo. Both names were by Woulfe's time nearly always written Lynch.[5]

Lynch (de Lench) of Galway

Knock, Co. Meath, and later the town of Galway · Meath, Galway

A Norman family who settled at Knock in Meath soon after the invasion. Around the start of the 14th century a branch moved to Galway, where it became one of the leading merchant 'tribes' and kept a prominent place until the Jacobite wars.[2][8]

The name over time

History

Two names in one

Lynch is a good example of how English spelling can hide quite different family histories. Woulfe separates the Norman de Lench family of Meath and Galway from the Gaelic Ó Loingsigh, and he counts at least seven unrelated Ó Loingsigh families, from Antrim to West Cork. The Gaelic name comes from Loingseach, a personal name tied to the word for a fleet; the Norman one is usually explained as a place-name meaning a hill, though sources differ on which Lench is meant. Because Lynch spread to every part of Ireland, a family's county is usually a better clue to its origin than the name itself.[1][2][3][7]

The Gaelic Lynches

The most prominent of the Gaelic families were the Ó Loingsigh chiefs of Dál Riata in north-east Ulster, who appear often in the 11th-century annals before the Anglo-Normans pushed them aside. In Tipperary another Ó Loingsigh family ruled Uaithne-thíre until the O'Mulryans displaced them. Further families of the name belonged to Breifne, to the Dalcassians of Thomond, to the Corca Laoighdhe of West Cork and to the Uí Fiachrach of Sligo. In Galway the name was sometimes reshaped as Ó Loinscigh, giving Lynskey, while in Donegal, Mayo and Cork Lynch could also stand for the longer Ó Loingseacháin.[1][6][5][3]

From Meath to Galway

The Norman Lynches first appear at Knock in Co. Meath soon after the invasion. Early in the 14th century a branch moved west to Galway, where it rose to become one of the fourteen merchant families later called the Tribes of Galway. These families grew rich on trade with continental Europe and controlled the town's government for generations. Their wealth is still visible in Lynch's Castle on Shop Street, a fortified town house thought to date from the 15th or early 16th century and now a bank branch.[2][8][9]

Mayors, baronets and confiscation

Lynches filled the mayoralty of Galway again and again: Dominick Dubh Lynch, who died in 1508, was its second mayor, and James Lynch fitz Stephen held office in 1493–94. In 1622 Henry Lynch was made a baronet; the title later became the Lynch-Blosse baronetcy. The town surrendered to Cromwellian forces in 1652, and the name 'Tribes', first used as an insult by the Cromwellians, was later taken up by the families themselves. After the Jacobite wars several Lynches were attainted and lost their property, though Woulfe notes that a number of Lynch families remained in Connacht.[8][10][11][2]

The 'lynch law' story

Galway tradition says that James Lynch fitz Stephen, as mayor, condemned his own son for murder and hanged him from a window of the family house. The earliest known telling dates from 1674, nearly two centuries later, and the historian James Mitchell regarded it as pure myth. Stones said to come from the house were set into a wall of St Nicholas' churchyard in 1854, where they can still be seen. The story has often been offered as the source of the verb 'to lynch', but that link is generally treated as a false etymology.[10][12]

Lynches abroad

Galway's trade connections carried Lynches across Europe and the Americas. Jean-Baptiste Lynch became mayor of Bordeaux and a peer of France, and Patrick Lynch, who settled in what is now Argentina, was an ancestor of Che Guevara. Eliza Lynch, born in Co. Cork, became the partner of Francisco Solano López, president of Paraguay, and Thomas Lynch Jr. of South Carolina signed the United States Declaration of Independence.[8][3]

Places linked to the name

  • Lynch's Castle, Co. Galway — Fortified town house on Shop Street built by the Lynch family, probably in the 15th or early 16th century.[9]
  • St Nicholas' Collegiate Church, Galway, Co. Galway — James Lynch fitz Stephen paid for a window here; the 'Lynch memorial' stones were set into its churchyard wall in 1854.[10][12]
  • Knock, Co. Meath — Where the Norman de Lench family first settled after the invasion, according to Woulfe.[2]
  • Barony of Owney (Uaithne), Co. Tipperary — Territory of Uaithne-thíre, ruled by an Ó Loingsigh family before the O'Mulryans.[1]
  • Castle Carra, Co. Mayo — Burke gives Castle Carra as the seat of the Lynch-Blosse baronets.[13]

Everyday lives

The Lynchs in the census

Who the Lynchs were in the 1901 and 1911 censuses (and 1926 where recorded), set against everyone in Ireland in the same census.

Lynchs All of Ireland Ireland's figure marked on the Lynch bar

Religion, 1911

Catholic +23.2 points vs Ireland
Lynchs 96.8%
All of Ireland 73.6%
Church of Ireland −11.7 points vs Ireland
Lynchs 1.5%
All of Ireland 13.2%
Presbyterian −8.9 points vs Ireland
Lynchs 1.2%
All of Ireland 10.1%
Methodist & other −2.7 points vs Ireland
Lynchs 0.4%
All of Ireland 3.1%

Irish language

Spoke Irish, 1901 +4.7 points vs Ireland
Lynchs 20.0%
All of Ireland 15.3%
Spoke Irish, 1911 +3.2 points vs Ireland
Lynchs 16.7%
All of Ireland 13.5%
Spoke Irish, 1926 · 26 counties +1.2 points vs Ireland
Lynchs 14.7%
All of Ireland 13.5%

105 Lynchs spoke Irish only in 1901.

Reading & writing

Could read and write, 1901 · aged 15+ −0.8 points vs Ireland
Lynchs 79.6%
All of Ireland 80.4%
Could read and write, 1911 · aged 15+ −0.7 points vs Ireland
Lynchs 85.1%
All of Ireland 85.8%

Family life, 1911

Household size · 3,607 households about the same as Ireland
Lynchs 4.83
All of Ireland 4.83
Children born per mother · women 45–59 higher than Ireland
Lynchs 6.93
All of Ireland 6.46
Children still living +1.2 points vs Ireland
Lynchs 81.0%
All of Ireland 79.8%

Commonest occupations

Adults aged 15+, 1901 and 1911 combined.

Farmer3,291
Farmer's son1,494
Farmer's daughter845
Agricultural labourer786
Farm servant635
General labourer575
Labourer532
Farm labourer414
House keeper394
Domestic servant340

Born outside Ireland

1.8% of Lynchs in 1911 gave a birthplace outside Ireland.

England197
Scotland55
United States42
Wales6
Australia & NZ6
India2

Median age: 23 in 1901, 25 in 1911.

Given names

First names among the Lynchs

Men and boys

  1. John3,922
  2. Patrick3,201
  3. Michael2,258
  4. James2,224
  5. Thomas1,790
  6. William876
  7. Daniel746
  8. Peter593
  9. Edward542
  10. Joseph520

Women and girls

  1. Mary4,246
  2. Bridget2,115
  3. Margaret1,542
  4. Ellen1,307
  5. Kate950
  6. Catherine934
  7. Annie845
  8. Anne679
  9. Julia597
  10. Maggie553

All three censuses combined. Top five in 1926: John, Patrick, Michael, James, Thomas; Mary, Bridget, Margaret, Ellen, Annie.

Spellings

Spellings

This page combines the spellings below, which census enumerators and families used for the same name.

Spelling190119111926Records
Lynch18,10217,61516,065Search

Related forms

  • Lynchy, Linchy — Older anglicisations of Ó Loingsigh that kept its final syllable.[1]
  • Lynskey, Linskey — From Ó Loinscigh, a Co. Galway variant of Ó Loingsigh.[6][3]
  • Lindsay — Woulfe notes Ó Loingsigh was occasionally rendered Lindsay, a name usually of Scottish origin.[1]
  • Lynchehan, Lynchahaun — Fuller forms of Ó Loingseacháin, which was usually shortened to Lynch.[5]
  • MacGlinchy, Clinchy — From Mac Loingsigh or Mag Loingsigh, a related but separate Donegal surname built on the same personal name.[14][15][3]
  • de Lench — The original Norman form of the Galway family's name.[2]

Diaspora

The Lynchs abroad

Emigration carried the name worldwide. In the 2010 United States census:

SpellingPeopleUS rank
Lynch117,708259th

Source: US Census Bureau, 2010 surname file (public domain).

Heraldry

Is there a Lynch coat of arms?

Coats of arms were granted to particular families, not to everyone named Lynch, so there is no single 'Lynch crest'. Burke's General Armory (1884) records arms for the Lynch family of Galway, blue with a gold chevron between three gold trefoils and a lynx as the crest, and gives the Lynch-Blosse baronets the motto 'Nec temere nec timide'. An unrelated English Lynch family of Kent bore three lynxes. None of these arms belong to the Gaelic Ó Loingsigh families.[13][3]

Websites selling a single “Lynch family crest” are selling a design, not an inheritance. Arms in Ireland belonged to individuals and their heirs, and the Chief Herald of Ireland still grants arms that way today.

People

Notable people named Lynch

  • James Lynch fitz Stephen (fl. 1493)
    Mayor of Galway in 1493–94, remembered through the legend that he hanged his own son.
  • John Lynch (c. 1599–c. 1677)
    Galway priest, historian and Archdeacon of Tuam who wrote under the pen-name Gratianus Lucius.
  • Thomas Lynch Jr. (1749–1779)
    South Carolina delegate who signed the United States Declaration of Independence.
  • Eliza Lynch (1833–1886)
    Cork-born partner of Paraguayan president Francisco Solano López, often called Paraguay's first lady.
  • Arthur Lynch (1861–1934)
    Irish-Australian engineer, doctor and MP who fought on the Boer side in South Africa.
  • Diarmuid Lynch (1878–1950)
    Cork revolutionary, IRB organiser and member of the First Dáil, active in Irish America.
  • Liam Lynch (1892–1923)
    IRA chief of staff during the Civil War, killed in south Tipperary in April 1923.
  • Patricia Lynch (1894–1972)
    Children's writer best known for The Turf-Cutter's Donkey, illustrated by Jack B. Yeats.
  • Jack Lynch (1917–1999)
    Cork hurler and footballer who served twice as Taoiseach and led Fianna Fáil.
  • David Lynch (1946–2025)
    American film-maker and artist whose surreal style gave rise to the word 'Lynchian'.

Questions

Questions about the Lynch name

Is Lynch an Irish surname?

Yes. Lynch is one of the most widespread surnames in Ireland, but it has two quite different roots. Most Lynches descend from Gaelic families called Ó Loingsigh, found from Antrim to West Cork. A smaller group descend from the Norman de Lench family, who settled in Meath and then Galway, where they became one of the Tribes of Galway. An unrelated Lynch family is also recorded in Kent in England.[1][2][3]

What is Lynch in Irish?

The usual Irish form is Ó Loingsigh, meaning 'descendant of Loingseach'. For the Norman Lynches of Galway, Woulfe gives the Gaelicised form de Línse. Some Lynches in Donegal, Mayo, Cork and Sligo descend from Ó Loingseacháin, a related name built on a diminutive of Loingseach.[1][2][5]

What does the name Lynch mean?

For the Gaelic families it goes back to the personal name Loingseach, which Woulfe connects with loingeas, 'a fleet', so it suggests a seafarer or someone with ships. For the Norman Galway family, Woulfe explains de Lench as 'at the hill', from where the family lived. Wiktionary traces it to a place called Lench in Worcestershire.[1][2][7]

Does the word 'lynching' come from the Lynches of Galway?

Probably not. A Galway legend says James Lynch fitz Stephen, mayor in 1493–94, hanged his own son for murder. The earliest known version was written in 1674, the historian James Mitchell considered it a myth, and the claimed link to the verb 'to lynch' is usually described as a false etymology. A memorial plaque to the story can still be seen in St Nicholas' churchyard in Galway.[10]

Is there a Lynch family crest or coat of arms?

There is no single crest for everyone called Lynch. Arms belonged to particular families. Burke's General Armory records arms for the Lynch family of Galway (a gold chevron between three gold trefoils on blue, with a lynx crest) and the motto 'Nec temere nec timide' for the Lynch-Blosse baronets. These relate to the Galway family, not to the Gaelic Ó Loingsigh families.[13]

Are Lynch and Lynskey the same name?

They can be. Woulfe explains Ó Loinscigh, the source of Lynskey and Linskey, as a Co. Galway form of Ó Loingsigh with its consonants transposed. So a Galway Lynskey and a Lynch may share a Gaelic origin, although the families have long been recorded separately.[6][3]

Where in Ireland is the Lynch surname most common?

In the 1911 census the largest numbers of Lynchs lived in Cork (3,102), Cavan (1,914), Dublin (1,755). Relative to population, the name was most concentrated in Cavan (210 per 10,000), Meath (156 per 10,000), Kerry (102 per 10,000).

How common was the Lynch surname in Ireland?

17,615 people were recorded as Lynch in the 1911 census of Ireland, making it the 20th most common surname. That is roughly 0.4% of the population, or 1 person in 249.

Looking for a Lynch ancestor?

Search every Lynch household in the 1901, 1911 and 1926 censuses, with free images of the original forms.

Search records on irishcensus.com

Evidence

Sources

  1. Patrick Woulfe, Ó Loingsigh, in Irish Names and Surnames (1923)
  2. Patrick Woulfe, de Línse, in Irish Names and Surnames (1923)
  3. Wikipedia, Lynch (surname) (2026)
  4. Patrick Woulfe, a Línse, in Irish Names and Surnames (1923)
  5. Patrick Woulfe, Ó Loingseacháin, in Irish Names and Surnames (1923)
  6. Patrick Woulfe, Ó Loinscigh, in Irish Names and Surnames (1923)
  7. Wiktionary, Lynch (2026)
  8. Wikipedia, Tribes of Galway (2026)
  9. Wikipedia, Lynch's Castle (2026)
  10. Wikipedia, James Lynch fitz Stephen (2026)
  11. Wikipedia, Lynch-Blosse baronets (2026)
  12. Wikipedia, St. Nicholas' Collegiate Church (2026)
  13. Sir Bernard Burke, The General Armory of England, Scotland, Ireland, and Wales (1884). Entries 'Lynch (Galway)' and 'Lynch-Blosse'.
  14. Patrick Woulfe, Mac Loingsigh, in Irish Names and Surnames (1923)
  15. Patrick Woulfe, Mag Loingsigh, in Irish Names and Surnames (1923)
  16. Census of Ireland 1901 and 1911, and Census of Population 1926, National Archives of Ireland. Counts compiled by surnames.ie from the irishcensus.com transcription (dataset 20260831130351). 1926 data © National Archives of Ireland, CC BY 4.0.
  17. Irish forms cross-checked against Gaois surname data (Fiontar & Scoil na Gaeilge, DCU).

How we compile these figures: methodology.