The Sas surname
In the 2010 U.S. Census, 770 people carried this name — #30,367 among all U.S. surnames, about 1 in every 384,600 people counted. That is up 15% from 668 in 2000.
Where the name comes from
The origin of the Sas surname
A male surname originating as an ethnonym.
From Wiktionary, the free dictionary (en.wiktionary.org) — entry «Sas» (Slovak), by Wiktionary contributors · licensed CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0) · excerpt, lightly adapted.
In Poland’s population register
2,883 people named Sas have a registered home in Poland.
Of the 3,512 in Poland’s national register, these are the ones with a permanent address on file. They live in all 16 of Poland’s 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 848 people named Sas 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 Antwerp.
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 Argentina’s national register
At least 402 people named Sas 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 Misiones.
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 France’s civil register
France’s register of deaths holds 128 people named Sas.
54 of them were born outside France. Those born in France came from 24 départements, most often Nord.
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 Switzerland’s population statistics
46 people named Sas live in Switzerland.
They live in 5 of Switzerland’s 26 cantons, most of all in Zurich.
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
78 people named Sas 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 Sas,
with a public archive behind them.
-
Santiago Sas 1774–1809 · Catholic priest -
Cornelius t’ Sas d. 1656 · theologian
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Andrzej Rożniatowski d. 1673
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Cornelius van Sas d. 1656
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Stijntje Sas 1740–1781
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Faustyn Dwernicki h. Sas 1745–
Wikidata and Wikimedia Commons (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Sas.
- Sartor 2,351 · U.S. census
- Sartore 232 · U.S. census
- Sartori 2,040 · U.S. census
- Sartorio 223 · U.S. census
- Sartoris 254 · U.S. census
- Sartorius 379 · U.S. census
- Sassano 879 · U.S. census
- Sasse 1,772 · U.S. census
- Sassi 595 · U.S. census
- Sassin 272 · U.S. census
- Sasso 2,923 · U.S. census
- Sasson 983 · U.S. census
When the index is not enough
This page says where Sas 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.