The Gaido surname
In the 2010 U.S. Census, 133 people carried this name — #128,249 among all U.S. surnames, about 1 in every 2,000,000 people counted. That is up 9% from 122 in 2000.
In Argentina’s national register
At least 1,813 people named Gaido 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 Córdoba.
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 141 people named Gaido.
19 of them were born outside France. Those born in France came from 21 départements, most often Gard.
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 Gaido live in Switzerland.
They live in 5 of Switzerland’s 26 cantons, most of all in Schaffhausen.
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.
Who carried it
People named Gaido,
with a public archive behind them.
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Bruno Gaido 1916–1942 · military personnel -
Alain Gaido d. 2023 · politician
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Domenico Gaido 1875–1950 · costume designer
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Lucía Gaido 1988– · volleyball player
Wikidata and Wikimedia Commons (CC0).
Nearby in the index
Surnames next to Gaido.
When the index is not enough
This page says where Gaido 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.