Koşak
surname · Latin script
Recorded as a male name· opposite-gender records fall within measured source noise
Koşak is a surname written in the Latin script, with more bearers in Türkiye than in any other country. Recorded meaning: nickname from a simplified form of koscak, denoting a kind of nut tree with very hard nuts, probably denoting a strong, vigorous man. Also found as Koscak.
- TRTürkiye≈1 in 61K(inferred from the name graph)
- SISlovenia1 in 3.8K
- HRCroatia1 in 15K
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.
- Türkiye (inferred from the name graph)
- Sources
- 23 (measured from records)
- 1 in 3.8K (inferred from the name graph)
≈1,300 people, est.
Highest-authority source
Slovenia
measured from records inferred from the name graph
Spellings & scripts(measured from records)
One other spelling is counted as the same name:
Locally spelled Kosak 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(measured from records)
nickname from a simplified form of koscak, denoting a kind of nut tree with very hard nuts, probably denoting a strong, vigorous man. Also found as Koscak.
Sources 2
- Dictionary of American Family Names
- Wiktionary
Attested across 17 languages in the etymology graph.
Where in the world(measured from records)
Koşak 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.
| Country | Most common spelling | Sources | |||
|---|---|---|---|---|---|
| TR Türkiye | ≈1,300 est. | ≈1 in 61K | — | Koşak | 23 |
| PL Poland | 657 | 1 in 58K | 334 | — | — |
| US United States | 596 | 1 in 558K | 611 | Kosak | 13 |
| SI Slovenia | 549 | 1 in 3.8K | 549 | — | 1 |
| BR Brazil | 454 | 1 in 466K | 454 | — | — |
| HR Croatia | 284 | 1 in 15K | 284 | — | — |
| CH Switzerland | 31 | 1 in 271K | 31 | — | 1 |
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: Census Bureau — Surname Frequency 2010; Census Bureau — Surname Frequency 2020; stat.si Imena rojstva — full name register (per-token frequency + rank); IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); dane.gov.pl — PESEL living persons (surnames); DZS — Imena i prezimena (per-token lookup form); BFS — Familiennamen der Wohnbevölkerung (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).
Evidence(measured from records)
Attested in 1 sources across 0 countries.
Reference works 1
- Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
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 Koşak mean, and where does it come from?
- nickname from a simplified form of koscak, denoting a kind of nut tree with very hard nuts, probably denoting a strong, vigorous man. Also found as Koscak. Recorded by Dictionary of American Family Names and Wiktionary.
- In which country does Koşak have the most bearers?
- Mondonomo estimates about 1.3 thousand people named Koşak in Türkiye, more than in any other country we hold, where it is most often spelled koşak.
- Where is Koşak most common?
- Measured as a share of residents rather than as a count, Koşak is densest in Slovenia — about 1 in 3.8 thousand people — even though Türkiye holds more of our records for it.
- How common is the name Koşak?
- In Poland, the national register counted 657 people named Koşak in 2026, about 1 in 58 thousand residents.
What do you want to know about Koşak?
Nobody replies to these one by one, but what readers ask decides what these pages answer next.
Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/ko%C5%9FakThe 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, “Koşak”. Data snapshot 2026-10-10.