The Twardowski surname
In the 2010 U.S. Census, 925 people carried this name — #26,391 among all U.S. surnames, about 1 in every 322,600 people counted. That is up 1% from 915 in 2000.
Where the name comes from
The origin of the Twardowski surname
From Twardów /Twardowo + -ski.
From Wiktionary, the free dictionary (en.wiktionary.org) — entry «Twardowski» (Polish), by Wiktionary contributors · licensed CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0) · excerpt, lightly adapted.
In Poland’s population register
8,044 people named Twardowski have a registered home in Poland.
Of the 8,806 in Poland’s national register, these are the ones with a permanent address on file. They live in all 16 of Poland’s voivodeships, most of all in Greater Poland.
Where it concentrates, on the mapWhere 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 France’s civil register
France’s register of deaths holds 72 people named Twardowski.
17 of them were born outside France. Those born in France came from 16 départements, most often Nord.
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 Argentina’s national register
At least 27 people named Twardowski 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.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they live today
RENAPER (National Registry of Persons, Argentina), surnames of residents by province, December 2021 — CC BY 4.0.
Who carried it
People named Twardowski,
with a public archive behind them.
-
Bolesław Twardowski 1864–1945 · Catholic priest -
Kazimierz Twardowski 1866–1938 · mathematician -
Marcin Twardowski d. 1772 · sculptor
-
Samuel Twardowski 1600–1661 · poet
-
Peter von Twardowski 1758–1814 · Landrat
-
Konstantin von Twardowski 1760–1830 · military leader
Wikidata and Wikimedia Commons (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Twardowski.
- Turpin 11,937 · U.S. census
- Turri 463 · U.S. census
- Turrin 195 · U.S. census
- Tusch 134 · U.S. census
- Tussing 929 · U.S. census
- Tuszynski 390 · U.S. census
- Tyler 66,056 · U.S. census
- Ubeda 373 · U.S. census
- Uberti 264 · U.S. census
- Udo 409 · U.S. census
- Ugarte 3,272 · U.S. census
- Ugo 190 · U.S. census
When the index is not enough
This page says where Twardowski 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.