Košan
surname · Latin script
Košan is a surname written in the Latin script, with more bearers in the United States than in any other country.
- CZCzechia1 in 95K(measured from records)
- SKSlovakia≈1 in 293K
- NLNetherlands1 in 2.2M
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 Košan 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.
- United States (measured from records)
- 2 (measured from records)
- Sources
- 46 (measured from records)
- 1 in 95K (inferred from the name graph)
138 people, 2010
recorded for this name
Highest-authority source
Czechia
measured from records inferred from the name graph
Spellings & scripts(measured from records)
Locally spelled Kosan in US United States, CZ Czechia, Косань in UA Ukraine, Косан in KZ Kazakhstan and Košáň 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
No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.
Attested across 7 languages in the etymology graph.
Where in the world(measured from records)
Košan 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 | |||
|---|---|---|---|---|---|
| US United States | 138 | 1 in 2.4M | 151 | Kosan | 9 |
| CZ Czechia | 113 | 1 in 95K | 113 | Kosan | 15 |
| UA Ukraine | ≈67 est. | ≈1 in 652K | — | Косань | 13 |
| BR Brazil | 62 | 1 in 3.4M | 62 | — | — |
| IN India | 47 | 1 in 28M | 47 | — | 1 |
| KZ Kazakhstan | ≈22 est. | ≈1 in 849K | 3 | Косан | 13 |
| SK Slovakia | ≈19 est. | ≈1 in 293K | — | Košáň | 6 |
| NL Netherlands | 8 | 1 in 2.2M | 8 | — | — |
138 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; MVČR — living population register 2017; Bureau of National Statistics — birth registrations; IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); Instate — India surnames (clean spellings) from electoral rolls; CBG Familienamenbank — Dutch surname bearer counts (GBA/BRP 2007). 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).
Notable people with this name(measured from records)
- Marko KošanSISlovenian art historian
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)
Attested in 3 sources across 2 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| CZ Czechia | MVČR — living population register 2017 | — | 113 | #14,975 |
Reference works 1
- 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
- In which country does Košan have the most bearers?
- In the United States, the national register counted about 138 people named Košan, more than in any other country we hold, where it is most often spelled kosan.
- Where is Košan most common?
- Measured as a share of residents rather than as a count, Košan is densest in Czechia — about 1 in 95 thousand people — even though United States holds more of our records for it.
- How common is the name Košan?
- In the United States, the national register counted 138 people named Košan in 2010, about 1 in 2.4 million residents.
What do you want to know about Košan?
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%A1anThe 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, “Košan”. Data snapshot 2026-10-10.