Kośko
surname · Latin script
Kośko is a surname written in the Latin script, with more bearers in the United States than in any other country. Recorded meaning: nickname for a squint-eyed person, from Ukrainian kosyj ‘squint’ -i- -ko, suffix of Ukrainian surnames.
- PLPoland1 in 126K(measured from records)
- USUnited States1 in 365K
- HRCroatia1 in 423K
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.
- United States (measured from records)
- Sources
- 37 (measured from records)
- 1 in 126K (inferred from the name graph)
912 people, 2010
Highest-authority source
Poland
measured from records inferred from the name graph
Spellings & scripts(measured from records)
Locally spelled Kosko in US United States, PL Poland, CZ Czechia.
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 for a squint-eyed person, from Ukrainian kosyj ‘squint’ -i- -ko, suffix of Ukrainian surnames.
Sources 1
- Dictionary of American Family Names
Attested across 12 languages in the etymology graph.
Where in the world(measured from records)
Kośko 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.
912 people counted by Census Bureau — Surname Frequency 2010, 2010. 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 2000; dane.gov.pl — PESEL living persons (surnames); MVČR — living population register 2017; IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); INE — Padrón per-token widgets (current living counts, given + apellidos); DZS — Imena i prezimena (per-token lookup form); Familienaam.be — Belgian family-name frequency (population 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).
Evidence(measured from records)
Attested in 4 sources across 1 country.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| PL Poland | dane.gov.pl — PESEL living persons (surnames) | 2026 | 71 | — |
| PL Poland | dane.gov.pl — PESEL living persons (names) | — | 71 | #39,031 |
| PL Poland | dane.gov.pl — PESEL living persons (surnames) | 2026 | 58 | — |
| PL Poland | dane.gov.pl — PESEL living persons (names) | — | 58 | #44,844 |
Reference works 2
- Wikidata name items (native-script + romanized given/family names)
- Rymut, Słownik nazwisk współcześnie w Polsce używanych (10 vols, IJP PAN, Kraków 1992–1994) — every Polish surname in the PESEL register at the end of 1990, with bearer counts nationally and per voivodeship1990
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 Kośko mean, and where does it come from?
- nickname for a squint-eyed person, from Ukrainian kosyj ‘squint’ -i- -ko, suffix of Ukrainian surnames. Recorded by Dictionary of American Family Names.
- In which country does Kośko have the most bearers?
- In the United States, the national register counted about 912 people named Kośko, more than in any other country we hold, where it is most often spelled kosko.
- Where is Kośko most common?
- Measured as a share of residents rather than as a count, Kośko is densest in Poland — about 1 in 126 thousand people — even though United States holds more of our records for it.
- How common is the name Kośko?
- In the United States, the national register counted 912 people named Kośko in 2010, about 1 in 365 thousand residents.
What do you want to know about Kośko?
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%9BkoThe 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, “Kośko”. Data snapshot 2026-10-10.