Kasak

loc · Latin script

Meaning: nickname from Old Polish kasac si§ ‘to gird oneself’

(measured from records)Officially recorded in 10 countries · latest register: dane.gov.pl, 2026

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

  • EEEstonia≈1 in 4.2K(inferred from the name graph)
  • PLPoland1 in 48K
  • CZCzechia1 in 56K

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)

798 people, 2026

Record sources
43 (measured from records)

corpus datasets behind its best-documented spelling

strongest: highest-authority source

≈1 in 4.2K (inferred from the name graph)

Estonia, est.

measured from records inferred from the name graph

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Spellings & scripts

(measured from records)

2 other spellings are counted as the same name:

Locally spelled Kašák in CZ Czechia and Kasák in SK Slovakia.

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)

nickname from Old Polish kasac si§ ‘to gird oneself’.

Cited for this meaning 1

  • Dictionary of American Family Names

Attested in 1 language in the etymology graph.

Where in the world

(measured from records)

Kasak 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 Kasak is recorded, by country
CountryMost common spellingSources
PL Poland7981 in 48K415—43
IN India≈370 est.≈1 in 4M1—2
EE Estonia≈330 est.≈1 in 4.2K171—5
US United States2641 in 1.3M265—28
CZ Czechia1921 in 56K192Kašák15
SK Slovakia911 in 60K91Kasák10
FI Finland601 in 93K60—1

798 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; Census Bureau — Surname Frequency 2020; MVČR — living population register 2017; JÚĽŠ SAV — Databáza priezvisk na Slovensku (surname database, 1995 census); DVV — Nimipalvelu (Finnish name service, per-name lookup); naampy — India given names from state electoral rolls (in-rolls); the ee-stat-nimed register. 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)

Kasak is also recorded as 9 other names, grouped separately because the records behind them do not connect to the one described above.

  • a separate name8 spellings in the group

    Also written Kaşak, Kašák, Kasãk

  • Turkish surname3 spellings in the group

    Most recorded in Türkiye

    Also written Kaşak

  • Hindi name3 spellings in the group

    Most recorded in India

    Also written Kasãk

  • a separate name3 spellings in the group

    Also written Kašak

  • a separate name2 spellings in the group

    Also written Kaşak

  • Croatian surname7 spellings in the group

    Most recorded in Croatia

    Also written Kašak, Каsак

  • a separate name6 spellings in the group

    Also written Kaşak, Kásàk, Kasãk

  • Thai surname13 spellings in the group

    Most recorded in Thailand

    Also written กาศักดิ์, กาสัก, กาสิก, กาสก, ก๋าศักดิ์

  • a separate name4 spellings in the group

    Also written Kaşak, Kašák, Kasák

24 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)

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).

Evidence

(measured from records)

22 registers and reference works attest this spelling, across 10 countries.

Official registers attesting Kasak
CountryRegisterYearCountRank
PL Polanddane.gov.pl — PESEL living persons (surnames)2026415—
PL Polanddane.gov.pl — PESEL living persons (names)—415#7,960
PL Polanddane.gov.pl — PESEL living persons (surnames)2026383—
PL Polanddane.gov.pl — PESEL living persons (names)—383#8,496
US United StatesCensus Bureau — Surname Frequency 20202020265#77,921
US United StatesCensus Bureau — Surname Frequency 20102010264#73,464
US United StatesCensus Bureau — Surname Frequency 20002000253#71,808
EE EstoniaStatistics Estonia — per-name Population Register counts (nimed)—171#374
EE EstoniaStatistics Estonia — per-name Population Register counts (nimed)—165#342
FI FinlandDVV — Nimipalvelu (Finnish name service, per-name lookup)—60#19,389
IN IndiaInstate — India surnames by state (real counts) from electoral rolls—7#25,529
IN IndiaInstate — India surnames by state (real counts) from electoral rolls—6#33,759

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 Kasak mean, and where does it come from?
nickname from Old Polish kasac si§ ‘to gird oneself’. Recorded by Dictionary of American Family Names.
In which country does Kasak have the most bearers?
In Poland, the national register counted about 798 people named Kasak, more than in any other country we hold.
How common is the name Kasak?
In Poland, the national register counted 798 people named Kasak in 2026, about 1 in 48 thousand residents.

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

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, “Kasak”. Data snapshot 2026-10-13.

See how Kasak parses inside a full name →