The Radu surname
In the 2000 U.S. Census, 715 people carried this name — #30,753 among all U.S. surnames, about 1 in every 370,400 people counted.
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In Belgium’s population register
At least 553 people named Radu 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 Brussels-Capital.
Where it concentrates, on the mapWhere they live today
Statbel (Statistics Belgium), family names of the population by municipality, 1 January 2026 — CC BY 4.0.
In Switzerland’s population statistics
206 people named Radu live in Switzerland.
They live in 14 of Switzerland’s 26 cantons, most of all in Zurich.
Where it concentrates, on the mapWhere 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.
In France’s civil register
France’s register of deaths holds 70 people named Radu.
Most of them — 64 — were born outside France. Those born in France came from 6 départements, most often Ardennes.
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 Poland’s population register
26 people named Radu have a registered home in Poland.
Of the 245 in Poland’s national register, these are the ones with a permanent address on file. They live in 6 of Poland’s 16 voivodeships, most of all in Lesser 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.
Who carried it
People named Radu,
with a public archive behind them.
-
Jules Radu 1810–1899 · writer -
Elie Radu 1853–1931 · professor -
Demetriu Radu 1861–1920 · politician -
Ioan Radu 1866–1936 · mathematician -
Constantin Radu 1912– · athletics competitor
Wikidata and Wikimedia Commons (CC0) · 135 lives in all are documented under this name.
Nearby in the index
Surnames next to Radu.
- Radice 966 · U.S. census
- Radin 1,020 · U.S. census
- Radix 120 · U.S. census
- Radomski 1,195 · U.S. census
- Radosavljevic 138 · U.S. census
- Radovic 317 · U.S. census
- Radulovic 182 · U.S. census
- Raes 285 · U.S. census
- Raess 138 · U.S. census
- Rafa 121 · U.S. census
- Rafael 2,445 · U.S. census
- Raffa 1,215 · U.S. census
When the index is not enough
This page says where Radu 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.