The Dionisi surname
In the 2010 U.S. Census, 193 people carried this name — #94,730 among all U.S. surnames, about 1 in every 1,428,600 people counted. That is up 10% from 175 in 2000.
What the name means
The meaning of the Dionisi surname
A surname transferred from the given name.
Patronymic or plural form of the personal name Dionisio.
From Wiktionary, the free dictionary (en.wiktionary.org) — entry «Dionisi» (Italian), by Wiktionary contributors · licensed CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0) · excerpt, lightly adapted.
In Argentina’s national register
At least 343 people named Dionisi 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 196 people named Dionisi.
21 of them were born outside France. Those born in France came from 17 départements, most often Corsica.
Where it concentrates, on the mapWhere 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
25 people named Dionisi live in Switzerland.
They live in 4 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 Dionisi,
with a public archive behind them.
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Pierre Dionisi 1904–1976 · painter -
Paolo Dionisi d. 1592 · physician
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Filippo Lorenzo Dionisi 1712–1789 · Catholic priest
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Olimpiade Dionisi 1809– · lawyer
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Olimpiade Dionisi 1809– · lawyer
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Antonio Dionisi 1866–1931 · physician
Wikidata and Wikimedia Commons (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Dionisi.
When the index is not enough
This page says where Dionisi 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.