The Lambert surname
In the 2010 U.S. Census, 93,678 people carried this name — #329 among all U.S. surnames, about 1 in every 3,150 people counted. That is up 3% from 90,618 in 2000.
In France’s civil register
France’s register of deaths holds 29,370 people named Lambert.
635 of them were born outside France. Those born in France came from 107 départements, most often Paris.
Where it concentrates, on the mapWhere 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 10,526 people named Lambert 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 Liège.
Where it concentrates, on the mapWhere they live today
Statbel (Statistics Belgium), family names of the population by municipality, 1 January 2026 — CC BY 4.0.
In Switzerland’s population statistics
1,189 people named Lambert live in Switzerland.
They live in 19 of Switzerland’s 26 cantons, most of all in Fribourg.
Where it concentrates, on the mapWhere 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 Argentina’s national register
At least 1,046 people named Lambert 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 Ireland’s birth registers, 1890
Ireland registered 22 births for the Lambert name in 1890.
They were registered in all four provinces, most of all in Leinster. By the Registrar-General’s own method — births multiplied by 44.38 — that is about 1,000 people bearing the name in Ireland at the time. The Registrar-General’s note on the name: “Wexford and Dublin.”
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where 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 Poland’s population register
251 people named Lambert have a registered home in Poland.
Of the 375 in Poland’s national register, these are the ones with a permanent address on file. They live in 14 of Poland’s 16 voivodeships, most of all in Lower Silesian.
Where it concentrates, on the mapWhere 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
217 people named Lambert 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.
Who carried it
People named Lambert,
with a public archive behind them.
-
Claude Guillaume Lambert 1726–1794 · magistrate -
Johann Heinrich Lambert 1728–1777 · astronomer -
John Lambert 1746–1823 · politician -
Aylmer Bourke Lambert 1761–1842 · botanical collector -
William Lambert 1779–1851 · cricketer
Wikidata and Wikimedia Commons (CC0) · 168 lives in all are documented under this name.
Nearby in the index
Surnames next to Lambert.
- Lamartiniere 206 · U.S. census
- Lamas 5,621 · U.S. census
- Lamay 1,835 · U.S. census
- Lambard 106 · U.S. census
- Lambart 100 · U.S. census
- Lamberger 143 · U.S. census
- Lamberti 948 · U.S. census
- Lamberton 1,002 · U.S. census
- Lamberty 709 · U.S. census
- Lambing 611 · U.S. census
- Lamble 166 · U.S. census
- Lamblin 188 · U.S. census
When the index is not enough
This page says where Lambert 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.