The Kaczorowski surname
In the 2010 U.S. Census, 839 people carried this name — #28,437 among all U.S. surnames, about 1 in every 357,100 people counted. That is up 9% from 767 in 2000.
What the name means
The meaning of the Kaczorowski surname
From kaczor (“drake”).
From Wiktionary, the free dictionary (en.wiktionary.org) — entry «Kaczorowski» (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
8,919 people named Kaczorowski have a registered home in Poland.
Of the 9,861 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 Masovian.
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 Argentina’s national register
At least 63 people named Kaczorowski 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 Misiones.
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.
In France’s civil register
France’s register of deaths holds 58 people named Kaczorowski.
18 of them were born outside France. Those born in France came from 15 départements, most often Isère.
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.
Who carried it
People named Kaczorowski,
with a public archive behind them.
-
Klemens Kaczorowski 1887–1942 · farmer -
Michał Kaczorowski 1897–1975 · architect -
Stefan Kaczorowski 1899–1988 · politician -
Juliusz Kaczorowski 1909–1988 · presbyter -
Teofil Kaczorowski 1830–1889 · physician
-
Feliks Kaczorowski 1849–1908
Wikidata and Wikimedia Commons (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Kaczorowski.
- Kacher 274 · U.S. census
- Kaczka 255 · U.S. census
- Kaczmarczyk 1,275 · U.S. census
- Kaczmarek 4,052 · U.S. census
- Kaczmarski 704 · U.S. census
- Kaczor 1,711 · U.S. census
- Kada 212 · U.S. census
- Kader 969 · U.S. census
- Kadi 334 · U.S. census
- Kadiri 227 · U.S. census
- Kadri 563 · U.S. census
- Kaelin 2,590 · U.S. census
When the index is not enough
This page says where Kaczorowski 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.