The Riso surname
In the 2010 U.S. Census, 753 people carried this name — #30,889 among all U.S. surnames, about 1 in every 384,600 people counted. That is up 1% from 747 in 2000.
In Argentina’s national register
At least 585 people named Riso 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 114 people named Riso.
Most of them — 61 — were born outside France. Those born in France came from 11 départements, most often Hérault.
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
111 people named Riso live in Switzerland.
They live in 12 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 Belgium’s population register
At least 36 people named Riso 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 Hainaut.
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 Riso,
with a public archive behind them.
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Francesco Riso 1826–1860 · politician -
Giovanni Riso di Colobria 1836–1901 · politician -
Giovanni Villa Riso 1813–1884 · politician
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Hans Riso 1889–1910 · association football player
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Armando Riso 1909– · association football player
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Gianni Riso 1952– · disc jockey
Wikidata and Wikimedia Commons (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Riso.
When the index is not enough
This page says where Riso 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.