The Oros surname
In the 2010 U.S. Census, 2,512 people carried this name — #12,384 among all U.S. surnames, about 1 in every 117,600 people counted. That is up 23% from 2,042 in 2000.
In Argentina’s national register
At least 1,843 people named Oros 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 Mendoza.
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 57 people named Oros.
21 of them were born outside France. Those born in France came from 8 départements, most often Seine-et-Marne.
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
29 people named Oros live in Switzerland.
They live in 4 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
28 people named Oros 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).
In print
Oros in American newspapers,
1897–1905.
Chronicling America, Library of Congress — digitised newspapers in the public domain · 673,242 pages in all carry the name.
Who carried it
People named Oros,
with a public archive behind them.
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Corneliu Oros 1950– · volleyball player -
Rozalia Oros 1964– · fencer -
Rozalia Oros 1964– · fencer
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Kálmán Oros 1864–1901
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Simion Oros 1885–1972 · politician
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Štefan Oros 1922–
Wikidata and Wikimedia Commons (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Oros.
- Oriol 607 · U.S. census
- Orion 219 · U.S. census
- Orlandi 1,072 · U.S. census
- Orlandini 330 · U.S. census
- Orlando 12,586 · U.S. census
- Orlowski 3,208 · U.S. census
- Orosco 8,313 · U.S. census
- Orozco 65,904 · U.S. census
- Ors 126 · U.S. census
- Orsatti 214 · U.S. census
- Orsetti 100 · U.S. census
- Orsi 1,100 · U.S. census
When the index is not enough
This page says where Oros 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.