The Kwiecien surname
In the 2010 U.S. Census, 529 people carried this name — #41,164 among all U.S. surnames, about 1 in every 555,600 people counted. That is up 3% from 514 in 2000.
In Poland’s population register
13,606 people named Kwiecien have a registered home in Poland.
Of the 14,786 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 Holy Cross.
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 81 people named Kwiecien.
27 of them were born outside France. Those born in France came from 11 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 the Nordic population registers
34 people named Kwiecien is counted in Sweden.
Sweden’s figure is from 31 December 2022, the last count Statistics Sweden published.
Counted, by country
Own calculations based on data from Statistics Sweden (SCB), surnames with at least two bearers, 31 December 2022 — CC BY 4.0 (names with 20 or more bearers shown).
Who carried it
People named Kwiecien,
with a public archive behind them.
-
Pavel Kwiecien 1983– · university teacher
Wikidata (CC0).
Nearby in the index
Surnames next to Kwiecien.
- Kuttler 292 · U.S. census
- Kuzma 2,588 · U.S. census
- Kwasniewski 723 · U.S. census
- Kwasnik 550 · U.S. census
- Kwiatek 564 · U.S. census
- Kwiatkowski 6,377 · U.S. census
- Ky 1,042 · U.S. census
- La 6,655 · U.S. census
- Laas 299 · U.S. census
- Lab 411 · U.S. census
- Labadie 1,926 · U.S. census
- Laban 520 · U.S. census
When the index is not enough
This page says where Kwiecien 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.