The Rios surname
In the 2010 U.S. Census, 127,794 people carried this name — #237 among all U.S. surnames, about 1 in every 2,310 people counted. That is up 32% from 96,569 in 2000.
What the name means
The meaning of the Rios surname
Literally, “rivers”. Se rio.
From Wiktionary, the free dictionary (en.wiktionary.org) — entry «Ríos» (Spanish), by Wiktionary contributors · licensed CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0) · excerpt, lightly adapted.
In Argentina’s national register
At least 140,391 people named Rios 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 France’s civil register
France’s register of deaths holds 434 people named Rios.
198 of them were born outside France. Those born in France came from 39 départements, most often Hauts-de-Seine.
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
356 people named Rios live in Switzerland.
They live in 17 of Switzerland’s 26 cantons, most of all in Vaud.
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 the Nordic population registers
86 people named Rios 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
Rios in American newspapers,
1896–1963.
Chronicling America, Library of Congress — digitised newspapers in the public domain · 2,207,884 pages in all carry the name.
Who carried it
People named Rios,
with a public archive behind them.
-
Artur César Rios 1846–1906 · physician -
Cassandra Rios 1932–2002 · writer -
Flávio Rios Peixoto da Silveira 1945– · politician -
Anthony Rios 1950–2019 · actor -
Mirna Ríos 1953– · singer
Wikidata and Wikimedia Commons (CC0) · 121 lives in all are documented under this name.
Nearby in the index
Surnames next to Rios.
When the index is not enough
This page says where Rios 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.