The Leonhard surname
In the 2000 U.S. Census, 1,125 people carried this name — #21,605 among all U.S. surnames, about 1 in every 238,100 people counted.
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In France’s civil register
France’s register of deaths holds 177 people named Leonhard.
9 of them were born outside France. Those born in France came from 15 départements, most often Bas-Rhin.
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 Poland’s population register
124 people named Leonhard have a registered home in Poland.
Of the 161 in Poland’s national register, these are the ones with a permanent address on file. They live in 7 of Poland’s 16 voivodeships, most of all in Greater Poland.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they live today
PESEL register, Ministry of Digital Affairs of Poland (dane.gov.pl) — CC0 · living people by voivodeship of permanent residence, 20 January 2026.
In Switzerland’s population statistics
123 people named Leonhard live in Switzerland.
They live in 11 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 · names with fewer than 3 bearers in a canton are not published.
Nearby in the index
Surnames next to Leonhard.
- Leonardo 4,315 · U.S. census
- Leonce 136 · U.S. census
- Leoncini 127 · U.S. census
- Leone 15,047 · U.S. census
- Leonelli 351 · U.S. census
- Leonetti 1,539 · U.S. census
- Leonhardt 3,458 · U.S. census
- Leonhart 544 · U.S. census
- Leoni 1,055 · U.S. census
- Leonidas 184 · U.S. census
- Leonis 156 · U.S. census
- Leopold 4,056 · U.S. census
When the index is not enough
This page says where Leonhard 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.