The Petroni surname
In the 2010 U.S. Census, 327 people carried this name — #61,436 among all U.S. surnames, about 1 in every 909,100 people counted. That is down 23% from 423 in 2000.
In Argentina’s national register
At least 844 people named Petroni 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 82 people named Petroni.
23 of them were born outside France. Those born in France came from 6 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 Petroni live in Switzerland.
They live in 3 of Switzerland’s 26 cantons, most of all in Bern.
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 Petroni,
with a public archive behind them.
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Gian Domenico Petroni 1838–1908 · lawyer -
Andrea Petroni 1863–1943 · painter -
Riccardo Petroni 1250–1314 · Catholic priest
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Pietro Petroni 1311–1361 · monk
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Giacinto Petroni 1580–1648 · Catholic priest
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Luigi Petroni 1776–1845
Wikidata and Wikimedia Commons (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Petroni.
- Petris 207 · U.S. census
- Petro 5,777 · U.S. census
- Petrocchi 120 · U.S. census
- Petroff 2,018 · U.S. census
- Petron 431 · U.S. census
- Petrone 3,854 · U.S. census
- Petronio 430 · U.S. census
- Petrou 369 · U.S. census
- Petrov 2,129 · U.S. census
- Petrovic 1,895 · U.S. census
- Petrovitch 120 · U.S. census
- Petrucci 3,012 · U.S. census
When the index is not enough
This page says where Petroni 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.