The Leonardo surname
In the 2010 U.S. Census, 6,007 people carried this name — #5,766 among all U.S. surnames, about 1 in every 49,000 people counted. That is up 39% from 4,315 in 2000.
In Argentina’s national register
At least 637 people named Leonardo 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 Switzerland’s population statistics
93 people named Leonardo live in Switzerland.
They live in 8 of Switzerland’s 26 cantons, most of all in Zurich.
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 France’s civil register
France’s register of deaths holds 74 people named Leonardo.
27 of them were born outside France. Those born in France came from 8 départements, most often Var.
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 Belgium’s population register
At least 37 people named Leonardo live in Belgium.
Statbel only publishes a name in a municipality when five or more people there share it, so the real number is higher. Most of them live in Hainaut.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they live today
Statbel (Statistics Belgium), family names of the population by municipality, 1 January 2026 — CC BY 4.0.
Who carried it
People named Leonardo,
with a public archive behind them.
-
Bartolomé Leonardo de Argensola 1562–1631 · writer -
Felice Leonardo 1915–2015 · Catholic priest -
Felice Leonardo 1915–2015 · Catholic priest
-
Teresita de Castro 1948– · judge -
Lupercio Leonardo de Argensola 1559–1613 · writer
-
Agustín Leonardo 1580–1640 · Catholic priest
Wikidata and Wikimedia Commons (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Leonardo.
- Lenzi 1,232 · U.S. census
- Lenzini 183 · U.S. census
- Leo 8,039 · U.S. census
- Leon 86,363 · U.S. census
- Leonard 91,475 · U.S. census
- Leonardi 1,834 · U.S. census
- Leonce 233 · U.S. census
- Leoncini 118 · U.S. census
- Leone 15,364 · U.S. census
- Leonelli 347 · U.S. census
- Leonetti 1,646 · U.S. census
- Leonhard 1,135 · U.S. census
When the index is not enough
This page says where Leonardo 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.