Janošek

surname · Latin script

(measured from records)Officially recorded in 2 countries · latest register: JÚĽŠ SAV, 1995

/janoʃɛk/(machine-generated) Czech · model-generated

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

  • CZCzechia1 in 28K(measured from records)
  • SKSlovakia1 in 1.4M
  • USUnited States1 in 1.5M

carrying the name, as counted by each country's national register. One hue, darker where it is more common; hover a country for its figure.

Czechia (measured from records)

384 people

Record sources
28 (measured from records)

corpus datasets behind its best-documented spelling

strongest: reference-verified

1 in 28K (inferred from the name graph)

Czechia

measured from records inferred from the name graph

Spellings & scripts

(measured from records)

One other spelling is counted as the same name:

Locally spelled Janosek in US United States.

Spellings marked ● are how people bearing the name write it in our records, and ○ marks a model's transliteration; click a spelling to open its page.

Meaning & origin

No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.

Attested across 11 languages in the etymology graph.

Where the surname Janošek is found

(measured from records)

Janošek 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 Janošek is recorded, by country
CountryMost common spellingSources
CZ Czechia3841 in 28K385Janošek28
US United States2251 in 1.5M225Janosek14
PL Poland71 in 5.5M4——
SK Slovakia41 in 1.4M4Janošek2

384 people counted by MVČR — living population register 2017. 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: MVČR — living population register 2017; KdeJsme.cz — četnost jmen a příjmení (MVČR population register front-end); Census Bureau — Surname Frequency 2010; JÚĽŠ SAV — Databáza priezvisk na Slovensku (surname database, 1995 census); dane.gov.pl — PESEL living persons (surnames). 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)

Janošek is also recorded as 6 other names, grouped separately because the records behind them do not connect to the one described above.

  • Croatian surname4 spellings in the group

    Most recorded in Croatia

    Also written Janosek

  • Spanish surname4 spellings in the group

    Most recorded in United States, Brazil

    Languages: Spanish, Portuguese

    Also written Janosek

  • a separate name2 spellings in the group

    Also written Janosek

  • English surname8 spellings in the group

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

    Languages: English, German, Hungarian

    Also written Janosek, Jánosek, Jánošek

  • a separate name3 spellings in the group

    Also written Janosek

  • a separate name2 spellings in the group

    Also written Janosek

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)
19201940196019802000Čestmír Janošek, b. 1935Jiří Janošek, b. 1997Dominik Janošek, b. 1998

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)
FormalVážený pane / paní Janošek,Dear Janošek, (English)
InformalVážený pane / paní Janošek,Hello, (English)

Evidence

(measured from records)

5 registers and reference works attest this spelling, across 2 countries.

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

Frequently asked questions

How do you pronounce Janošek?
In Czech /janoʃɛk/. Transcriptions are machine-generated except where a dictionary is named.
Which countries have the most people with the surname Janošek?
In Czechia, the national register counted about 384 people named Janošek, more than in any other country we hold, where it is most often spelled janošek. After it come United States, Poland and Slovakia; the country table on this page ranks them.
Where is Janošek most common?
Janošek is densest in Czechia, where the national register counts about 1 in 28 thousand people carrying it.
How common is the name Janošek?
In Czechia, the national register counted 384 people named Janošek, about 1 in 28 thousand residents.

What do you want to know about Janošek?

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/jano%C5%A1ek

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, “Janošek”. Data snapshot 2026-10-13.

See how Janošek parses inside a full name →