Kozák

surname · Latin script

Meaning, in Czech: Cossack

Recorded for both men and women· direction only, no split published

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

Kozák is a surname written in the Latin script, with more bearers in Ukraine than in any other country, where it is the 63rd most common surname.

rarermore common
  • PLPoland1 in 1.4K(measured from records)
  • CZCzechia1 in 3K
  • USUnited States1 in 44K

carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). Where a country counts another spelling of the name rather than Kozák itself, the figure is that spelling’s, and it is named. One hue, darker where it is more common; hover a country for its figure.

Ukraine (inferred from the name graph)

≈30,000 named Козак, est.

2 (measured from records)

recorded for this name

Sources
158 (measured from records)

Highest-authority source

1 in 1.4K (inferred from the name graph)

Poland

measured from records inferred from the name graph

Name dossier (print, CSV)

Spellings & scripts(measured from records)

KozákLatin(measured from records)
КозакCyrillic(measured from records)

2 other spellings are counted as the same name:

Locally spelled Казак in RU Russia, BY Belarus, CN China, Kozak in PL Poland, US United States, CZ Czechia and Козак in UA Ukraine.

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(measured from records)

fungus belonging to the genera Leccinum, Leccinellum

Sources 1

  • kaikki.org Wiktionary extract (IPA + transliterations)

Attested across 21 languages in the etymology graph.

How Kozák is read(measured from records)

Kozák is one spelling over 3 language communities, and the dictionaries record it differently in 2 of them. Each row is what a source recorded for that language, beside the share of this name’s records the language holds. No single row is the name’s meaning.

  • Czech39%

    Cossack

    as a wordkaikki.org Wiktionary extract (IPA + transliterations)

  • Hungarian37%

    No dictionary in our sources glosses Kozák in Hungarian.

  • Slovak17%

    fungus belonging to the genera Leccinum, Leccinellum

    as a wordkaikki.org Wiktionary extract (IPA + transliterations)

The share is ours — how much of this name’s records each language holds. The sense beside it is the source’s, quoted and credited, including where it names a gender. We do not publish a gender of our own per language: our records carry one figure for the spelling as a whole.

Where in the world(measured from records)

Kozák 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 Kozák is recorded, by country
CountryMost common spellingSources
UA Ukraine#63≈30,000 est.≈1 in 1.5K—Козак68
PL Poland#7027,1791 in 1.4K14KKozak140
CN China—≈25,000 est.≈1 in 56K—Казак4
RU Russia—≈7,500 est.≈1 in 19K—Казак139
US United States—7,4951 in 44K7.7KKozak158
CZ Czechia#2093,6131 in 3K3.6KKozak69
BY Belarus#58≈3,000 est.≈1 in 3.2K—Казак28
SK Slovakia#1711,5911 in 3.4K1.6KKozák43

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; Census Bureau — Surname Frequency 2000; MVČR — living population register 2017; naše jména — 2016 MVČR snapshot; JÚĽŠ SAV — Databáza priezvisk na Slovensku (surname database, 1995 census). 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)

Kozák is also recorded as 5 other names, grouped separately because the records behind them do not connect to the one described above.

  • English surname13 spellings in the group

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

    Languages: English, German, Dutch

    Also written Kozak, Ko'Zak, Kozäk, Kožák, Kôzak

  • a separate name2 spellings in the group

    Also written Kozak

  • Romanian surname3 spellings in the group

    Most recorded in Romania, United States

    Also written Kozak, Kozăk

  • French surname4 spellings in the group

    Most recorded in France, United States, Canada, Belgium

    Also written Kozak, Kozàk

  • Spanish surname3 spellings in the group

    Most recorded in Argentina, United States, Brazil, Colombia

    Languages: Spanish, Portuguese

    Also written Kozak

14 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)

19201940196019802000Jan Kozák, b. 1921Václav Kozák, b. 1937András Kozák, b. 1943Ján Kozák, b. 1954Petr Kozák, b. 1965Stanislav Kozák, b. 1968Ján Kozák, b. 1980Danuta Kozák, b. 1987Libor Kozák, b. 1989David Kozák, b. 1999

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 Kozák,Dear Kozák, (English)
InformalVážený pane / paní Kozák,Hello, (English)

Evidence(measured from records)

Attested in 11 sources across 5 countries.

Official registers attesting Kozák
CountryRegisterYearCountRank
CZ Czechianaše jména — 2016 MVČR snapshot—3.6K#249
CZ CzechiaKdeJsme.cz — četnost jmen a příjmení (MVČR population register front-end)—3.6K#249
CZ CzechiaMVČR — living population register 2017—3.6K#249
SK SlovakiaJÚĽŠ SAV — Databáza priezvisk na Slovensku (surname database, 1995 census)19951.6K—
PL Polanddane.gov.pl — PESEL living persons (surnames)202624—
PL Polanddane.gov.pl — PESEL living persons (names)—24#80,324
PL Polanddane.gov.pl — PESEL living persons (surnames)202611—
PL Polanddane.gov.pl — PESEL living persons (names)—11#127,436

Reference works 3

  • Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
  • Wikipedia surname tokens
  • Wikidata name items (native-script + romanized given/family names)

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

Where does the name Kozák come from?
fungus belonging to the genera Leccinum, Leccinellum Recorded by kaikki.org Wiktionary extract (IPA + transliterations).
How do you pronounce Kozák?
A machine transcription gives /kozaːk/ (IPA) for Czech.
What does the name Kozák mean?
In Czech, Cossack
In which country does Kozák have the most bearers?
Mondonomo estimates about 30 thousand people named Козак in Ukraine, more than in any other country we hold.
Where is Kozák most common?
Measured as a share of residents rather than as a count, Kozák is densest in Poland — about 1 in 1.4 thousand people — even though Ukraine holds more of our records for it.
How common is the name Kozák?
In Poland, the national register counted 27,179 people named Kozák in 2026, about 1 in 1.4 thousand residents.
How common is Kozák compared with other names?
In Ukraine, Kozák is the 63rd most common surname of 1,177,784 surnames recorded there.

What do you want to know about Kozák?

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/koz%C3%A1k

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, “Kozák” — the 63rd most common surname in Ukraine. Data snapshot 2026-10-10.

See how Kozák parses inside a full name →