Kielar

surname · Latin script

Meaning: occupational name for a cellarman, a borrowing of German Keller ‘cellar’

Recorded as a male name· opposite-gender records fall within measured source noise

/ˈkiɫɝ/(machine-generated) pronunciation, model-generated

Kielar is a surname written in the Latin script, with more bearers in Poland than in any other country.

rarermore common
  • PLPoland1 in 8.8K(measured from records)
  • CZCzechia1 in 228K
  • NONorway1 in 497K

carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). One hue, darker where it is more common; hover a country for its figure.

Poland (measured from records)

4,348 people, 2026

Sources
76 (measured from records)

Highest-authority source

1 in 8.8K (inferred from the name graph)

Poland

measured from records inferred from the name graph

Meaning & origin(measured from records)

occupational name for a cellarman, a borrowing of German Keller ‘cellar’.

Sources 1

  • Dictionary of American Family Names

Where in the world(measured from records)

Kielar counted together with the spellings and other-language forms grouped with it. Where a register counted another spelling, the row names it.

Sorted by bearers: national registers' counts, and Mondonomo's estimates (≈, est.) where no register counts.

Where Kielar is recorded, by country
CountryMost common spellingSources
PL Poland4,3481 in 8.8K2.2KKielar76
US United States4631 in 718K463Kielar61
FR France≈100 est.≈1 in 652K5Kielar2
GB United Kingdom≈93 est.≈1 in 709K—Kielar22
IT Italy≈86 est.≈1 in 730K—Kielar2
CZ Czechia471 in 228K47Kielar14
NO Norway111 in 497K11—1
SK Slovakia≈9 est.≈1 in 587K—Kielar6

4,348 people counted by dane.gov.pl — PESEL living persons (surnames), 2026. Exact figures are national registers' own counts, while figures marked ≈ and est. are Mondonomo’s estimates, counted from our sources and calibrated against those registers; hover one for how far to trust it in that country. A dash means neither exists.

Registers cited: dane.gov.pl — PESEL living persons (surnames); Census Bureau — Surname Frequency 2010; MVČR — living population register 2017; INSEE — Fichier des noms de famille (1891–2000); SSB — Navnesøk (name-search service, living population). Figures without a register are Mondonomo estimates; see Methodology.

Country figures for a list of names, at full precision, are available under licence rather than by scraping this table (how that works).

Other names spelled this way(inferred from the name graph)

Kielar is also recorded as another name, grouped separately because the records behind them do not connect to the one described above.

  • English surname4 spellings in the group

    Most recorded in United States, United Kingdom, Germany, Australia

    Languages: English, German

    Also written Kielär, Kielaer

31 further groups record this spelling and are not listed here.

Grouping is the name graph's, not a register's: two spellings join a group when the evidence links them, so a group is a claim about the records rather than about the people.

Notable people with this name(measured from records)

19001920194019601980Wiesław Kielar, b. 1919Barbara Z. Kielar, b. 1930Marzanna Bogumiła Kielar, b. 1963Piotr Kielar, b. 1968Wojciech Kielar, b. 1978Magdalena Kielar, b. 1979

The ten people covered by the most Wikipedia language editions — a proxy for cross-cultural notability, which favours historical and Western figures over equally prominent contemporary ones — shown by birth year. Source: Wikidata (CC0).

How to address them(machine-generated)

FormalDear Kielar,
InformalHello,

Evidence(measured from records)

Attested in 19 sources across 10 countries.

Official registers attesting Kielar
CountryRegisterYearCountRank
PL Polanddane.gov.pl — PESEL living persons (surnames)20262.2K—
PL Polanddane.gov.pl — PESEL living persons (names)—2.2K#1,207
PL Polanddane.gov.pl — PESEL living persons (surnames)20262.1K—
PL Polanddane.gov.pl — PESEL living persons (names)—2.1K#1,219
US United StatesCensus Bureau — Surname Frequency 20102010463#46,037
US United StatesCensus Bureau — Surname Frequency 20002000428#46,758
US United StatesCensus Bureau — Surname Frequency 20202020416#53,634
CZ CzechiaMVČR — living population register 2017—47#30,412
CZ CzechiaKdeJsme.cz — četnost jmen a příjmení (MVČR population register front-end)—47#10,904
FR FranceINSEE — Fichier des noms de famille (1891–2000)193120—
FR FranceINSEE — Fichier des noms de famille (1891–2000)196114—
FR FranceINSEE — Fichier des noms de famille (1891–2000)198112—

Reference works 4

These works list the name; their figures are licensed and are not reproduced here.

Register rows as of the 2026-10-09 data build.

Frequently asked questions

What does the name Kielar mean, and where does it come from?
occupational name for a cellarman, a borrowing of German Keller ‘cellar’. Recorded by Dictionary of American Family Names.
How do you pronounce Kielar?
A machine transcription gives /ˈkiɫɝ/ (IPA) for English.
In which country does Kielar have the most bearers?
In Poland, the national register counted about 4.3 thousand people named Kielar, more than in any other country we hold, where it is most often spelled kielar.
Where is Kielar most common?
Kielar is densest in Poland, where the national register counts about 1 in 8.8 thousand people carrying it.
How common is the name Kielar?
In Poland, the national register counted 4,348 people named Kielar in 2026, about 1 in 8.8 thousand residents.

What do you want to know about Kielar?

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/kielar

The payload this page is built from: spellings and scripts, countries and languages, related names, and the registers that attest the form. It takes a free API key (1,000 requests a day), which returns what this page shows everyone; the full country table, every register citation and the year-by-year series come with a licensed key, as does bulk access.

About this data

measured from records inferred from the name graph machine-generated

These figures come from the data snapshot of and will change as it is rebuilt.

Statistics are aggregated from the Mondonomo name corpus; related names and etymology are inferred from the name graph; pronunciation and any machine-marked transliterations are model-generated. Read how the numbers are made, including their known failure modes, and where the data comes from.

Reference works we consult — surname dictionaries, official name registers, Wikidata and Wiktionary — are named directly, beside the claims they support. The per-country source counts also include datasets of person records: we publish how many there are and their authority tier, but not their names.

Cite this page Mondonomo, “Kielar”. Data snapshot 2026-10-10.

See how Kielar parses inside a full name →