The Mas surname
In the 2010 U.S. Census, 1,513 people carried this name — #18,317 among all U.S. surnames, about 1 in every 196,100 people counted. That is up 19% from 1,274 in 2000.
In France’s civil register
France’s register of deaths holds 5,618 people named Mas.
924 of them were born outside France. Those born in France came from 96 départements, most often Hérault.
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 Argentina’s national register
At least 3,489 people named Mas 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 Poland’s population register
272 people named Mas have a registered home in Poland.
Of the 347 in Poland’s national register, these are the ones with a permanent address on file. They live in 11 of Poland’s 16 voivodeships, most of all in Subcarpathian.
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 Belgium’s population register
At least 132 people named Mas 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 Limburg.
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 Switzerland’s population statistics
81 people named Mas live in Switzerland.
They live in 7 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 the Nordic population registers
29 people named Mas is counted in Sweden.
Sweden’s figure is from 31 December 2022, the last count Statistics Sweden published.
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).
Who carried it
People named Mas,
with a public archive behind them.
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Nicolas Mas-Castellane d. 1586 · military personnel
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Jaume Mas d. 1684 · Catholic priest
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Jean-Claude Mas d. 2019 · entrepreneur
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Pedro Mas d. 1681 · painter
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Ramon Mas i Escuder d. 1809
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Henri Mas d. 1944
Wikidata (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Mas.
- Marzec 1,016 · U.S. census
- Marzi 130 · U.S. census
- Marzo 665 · U.S. census
- Marzolf 868 · U.S. census
- Marzouk 384 · U.S. census
- Marzullo 1,377 · U.S. census
- Mascarello 155 · U.S. census
- Mascaro 1,439 · U.S. census
- Mascetti 149 · U.S. census
- Maschino 656 · U.S. census
- Maschio 124 · U.S. census
- Mascia 1,079 · U.S. census
When the index is not enough
This page says where Mas 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.