The Bielecki surname
In the 2010 U.S. Census, 1,505 people carried this name — #18,401 among all U.S. surnames, about 1 in every 196,100 people counted. That is up 3% from 1,468 in 2000.
In Poland’s population register
17,448 people named Bielecki have a registered home in Poland.
Of the 19,217 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 France’s civil register
France’s register of deaths holds 68 people named Bielecki.
27 of them were born outside France. Those born in France came from 17 départements, most often Rhône.
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 51 people named Bielecki 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.
In the Nordic population registers
47 people named Bielecki 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 Bielecki,
with a public archive behind them.
-
Tadeusz Bielecki 1901–1982 · politician -
Stefan Bielecki 1908–1944 · engineer -
Jan Frey-Bielecki 1916–1994 · politician -
Adam Bielecki 1811–1859 · politician
-
Aleksei Viktorovich Beletskii 1840–1907 · opinion journalist
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Ignacy Bielecki 1862–1963 · physician
Wikidata and Wikimedia Commons (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Bielecki.
- Bieganski 207 · U.S. census
- Biegel 863 · U.S. census
- Biehler 557 · U.S. census
- Biel 2,359 · U.S. census
- Bielak 547 · U.S. census
- Bielawski 1,086 · U.S. census
- Bieler 673 · U.S. census
- Bielli 106 · U.S. census
- Bien 1,960 · U.S. census
- Bienaime 2,277 · U.S. census
- Bienkowski 663 · U.S. census
- Bienvenu 1,000 · U.S. census
When the index is not enough
This page says where Bielecki 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.