The Lynch surname
In the 2010 U.S. Census, 117,708 people carried this name — #259 among all U.S. surnames, about 1 in every 2,510 people counted. That is up 3% from 114,448 in 2000.
In Ireland’s birth registers, 1890
Ireland registered 442 births for the Lynch name in 1890.
They were registered in all four provinces, most of all in Munster. By the Registrar-General’s own method — births multiplied by 44.38 — that is about 19,600 people bearing the name in Ireland at the time. The report prints a total of 444; its four provinces add up to 442.
Where it concentrates, on the mapWhere they were born, 1890
Registrar-General for Ireland, «Special Report on Surnames in Ireland» (R. E. Matheson, 1894), births index of 1890 — public domain.
In Argentina’s national register
At least 816 people named Lynch live in Argentina.
RENAPER only publishes a name in a province when more than ten people there share it, so the real number is higher. Most of them live in Buenos Aires Province.
Where it concentrates, on the mapWhere they live today
RENAPER (National Registry of Persons, Argentina), surnames of residents by province, December 2021 — CC BY 4.0.
In Switzerland’s population statistics
83 people named Lynch live in Switzerland.
They live in 11 of Switzerland’s 26 cantons, most of all in Vaud.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they live today
Swiss Federal Statistical Office (FSO), «Surnames of the permanent resident population by canton», 2025, opendata.swiss/en/dataset/nachnamen-der-standigen-wohnbevolkerung-nach-kanton3 · names with fewer than 3 bearers in a canton are not published.
In France’s civil register
France’s register of deaths holds 64 people named Lynch.
Most of them — 35 — were born outside France. Those born in France came from 10 départements, most often Pyrénées-Atlantiques.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they were born
Fichier des personnes décédées, INSEE — Licence Ouverte 2.0 · deaths recorded in France since 1970, by place of birth.
In Belgium’s population register
At least 37 people named Lynch live in Belgium.
Statbel only publishes a name in a municipality when five or more people there share it, so the real number is higher. Most of them live in Brussels-Capital.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they live today
Statbel (Statistics Belgium), family names of the population by municipality, 1 January 2026 — CC BY 4.0.
In Poland’s population register
35 people named Lynch have a registered home in Poland.
Of the 122 in Poland’s national register, these are the ones with a permanent address on file. They live in 10 of Poland’s 16 voivodeships, most of all in Subcarpathian.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they live today
PESEL register, Ministry of Digital Affairs of Poland (dane.gov.pl) — CC0 · living people by voivodeship of permanent residence, 20 January 2026.
In the Nordic population registers
143 people named Lynch are counted in Sweden and Finland.
Sweden’s figure is from 31 December 2022, the last count Statistics Sweden published. Finland counts its citizens, at home or abroad.
Counted, by country
Own calculations based on data from Statistics Sweden (SCB), surnames with at least two bearers, 31 December 2022 — CC BY 4.0 (names with 20 or more bearers shown) · Digital and Population Data Services Agency (DVV), Finland, surname statistics, August 2026 — CC BY 4.0.
In print
Lynch in American newspapers,
1888–1951.
Chronicling America, Library of Congress — digitised newspapers in the public domain · 1,424,944 pages in all carry the name.
Who carried it
People named Lynch,
with a public archive behind them.
-
Patrick Neeson Lynch 1817–1882 · Catholic priest -
Thomas Toke Lynch 1818–1871 · writer -
John Lynch 1825–1892 · journalist -
James Sylvester Mary Lynch 1846–1925 · cleric -
Jack Lynch 1857–1923 · baseball player
Wikidata and Wikimedia Commons (CC0) · 179 lives in all are documented under this name.
Nearby in the index
Surnames next to Lynch.
When the index is not enough
This page says where Lynch is.
A volume says what happened to it.
Every page in the index is free and stays free. The Heritage Volume is the long form: the full paper trail, the arms, the crossing — bound, and yours.