The Barbay surname
In the 2010 U.S. Census, 304 people carried this name — #65,244 among all U.S. surnames, about 1 in every 1,000,000 people counted. That is down 9% from 333 in 2000.
In France’s civil register
France’s register of deaths holds 330 people named Barbay.
6 of them were born outside France. Those born in France came from 23 départements, most often Seine-Maritime.
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 Switzerland’s population statistics
59 people named Barbay live in Switzerland.
They live in 4 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 Belgium’s population register
At least 25 people named Barbay 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.
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.
Who carried it
People named Barbay,
with a public archive behind them.
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Pierre Barbay d. 1664 · Society of Jesus
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István Barbay 1764–1838 · teacher
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Ferenc Barbay 1943– · actor
Wikidata (CC0).
Nearby in the index
Surnames next to Barbay.
- Barbarisi 177 · U.S. census
- Barbaro 1,112 · U.S. census
- Barbary 356 · U.S. census
- Barbas 313 · U.S. census
- Barbat 212 · U.S. census
- Barbato 2,437 · U.S. census
- Barbe 1,097 · U.S. census
- Barbeau 1,971 · U.S. census
- Barber 78,848 · U.S. census
- Barbera 3,696 · U.S. census
- Barberan 194 · U.S. census
- Barberi 502 · U.S. census
When the index is not enough
This page says where Barbay 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.