The Guarnieri surname
In the 2010 U.S. Census, 1,255 people carried this name — #20,971 among all U.S. surnames, about 1 in every 232,600 people counted. That is up 1% from 1,245 in 2000.
In Argentina’s national register
At least 762 people named Guarnieri 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 160 people named Guarnieri.
61 of them were born outside France. Those born in France came from 19 départements, most often Paris.
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
90 people named Guarnieri live in Switzerland.
They live in 9 of Switzerland’s 26 cantons, most of all in Ticino.
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
22 people named Guarnieri is counted in Finland.
Finland counts its citizens, at home or abroad.
Counted, by country
Digital and Population Data Services Agency (DVV), Finland, surname statistics, August 2026 — CC BY 4.0.
Who carried it
People named Guarnieri,
with a public archive behind them.
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Antonio Guarnieri 1880–1952 · composer -
Antonio Guarnieri 1880–1952 · composer
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Rosa Guarnieri Calò Carducci d. 1943
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Adriano Guarnieri d. 1983
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Francesco Guarnieri d. 1478
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Guarnerio Guarnieri d. 1689 · Catholic priest
Wikidata and Wikimedia Commons (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Guarnieri.
- Gualano 242 · U.S. census
- Gualtieri 1,298 · U.S. census
- Guardia 705 · U.S. census
- Guardiola 2,889 · U.S. census
- Guarino 6,775 · U.S. census
- Guarneri 718 · U.S. census
- Guasch 184 · U.S. census
- Guasco 206 · U.S. census
- Guay 3,255 · U.S. census
- Gubert 129 · U.S. census
- Gucciardi 173 · U.S. census
- Guckert 346 · U.S. census
When the index is not enough
This page says where Guarnieri 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.