The Ratto surname
In the 2010 U.S. Census, 956 people carried this name — #25,771 among all U.S. surnames, about 1 in every 312,500 people counted. That is down 15% from 1,131 in 2000.
In Argentina’s national register
At least 2,284 people named Ratto 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 177 people named Ratto.
42 of them were born outside France. Those born in France came from 28 départements, most often Bouches-du-Rhône.
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
21 people named Ratto live in Switzerland.
They live in 5 of Switzerland’s 26 cantons, most of all in Basel-Stadt.
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
268 people named Ratto are counted in Finland and Sweden.
Sweden’s figure is from 31 December 2022, the last count Statistics Sweden published. Finland counts its citizens, at home or abroad.
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) · Digital and Population Data Services Agency (DVV), Finland, surname statistics, August 2026 — CC BY 4.0.
Who carried it
People named Ratto,
with a public archive behind them.
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Benvenuto Ratto 1915–1941 · military personnel -
Gianni Ratto 1916–2005 · actor
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Roberto Ratto 1899–1981 · musician
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Cora Ratto de Sadosky 1912–1981 · mathematician
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Remo Ratto 1932– · politician
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Luciano Ratto 1932–2023 · mountaineer
Wikidata and Wikimedia Commons (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Ratto.
When the index is not enough
This page says where Ratto 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.