The Ruff surname
In the 2000 U.S. Census, 15,035 people carried this name — #2,220 among all U.S. surnames, about 1 in every 18,000 people counted.
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In France’s civil register
France’s register of deaths holds 419 people named Ruff.
29 of them were born outside France. Those born in France came from 34 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 Switzerland’s population statistics
310 people named Ruff live in Switzerland.
They live in 16 of Switzerland’s 26 cantons, most of all in Valais.
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 Poland’s population register
30 people named Ruff have a registered home in Poland.
Of the 55 in Poland’s national register, these are the ones with a permanent address on file. They live in 3 of Poland’s 16 voivodeships, most of all in Silesian.
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.
Nearby in the index
Surnames next to Ruff.
- Ruen 302 · U.S. census
- Ruesch 1,164 · U.S. census
- Ruez 179 · U.S. census
- Ruf 1,796 · U.S. census
- Rufenacht 367 · U.S. census
- Rufer 403 · U.S. census
- Ruffenach 122 · U.S. census
- Ruffier 119 · U.S. census
- Ruffin 15,263 · U.S. census
- Ruffing 1,793 · U.S. census
- Ruffini 593 · U.S. census
- Ruffino 1,587 · U.S. census
When the index is not enough
This page says where Ruff 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.