Kosoń

surname · Latin script

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

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

rarermore common
  • PLPoland1 in 90K(measured from records)
  • USUnited States1 in 2.4M
  • BEBelgium1 in 12M

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.

Poland (measured from records)

427 people, 2026

Sources
21 (measured from records)

Highest-authority source

1 in 90K (inferred from the name graph)

Poland

measured from records inferred from the name graph

Name dossier (print, CSV)

Meaning & origin

No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.

Attested across 22 languages in the etymology graph.

Where in the world(measured from records)

Kosoń 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 Kosoń is recorded, by country
CountryMost common spellingSources
PL Poland4271 in 90K215Kosoń17
US United States1401 in 2.4M140—21
BE Belgium11 in 12M1——

427 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; 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).

Other names spelled this way(inferred from the name graph)

Kosoń is also recorded as 3 other names, grouped separately because the records behind them do not connect to the one described above.

  • Russian surname5 spellings in the group

    Most recorded in Russia

    Also written Косон, Косонь, Koson

  • a separate name6 spellings in the group

    Also written Koson, Kōson

  • a separate name4 spellings in the group

    Also written Koson

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.

How to address them(machine-generated)

FormalDear Colleague,
InformalHello,

Evidence(measured from records)

Attested in 5 sources across 1 country.

Official registers attesting Kosoń
CountryRegisterYearCountRank
PL Polanddane.gov.pl — PESEL living persons (surnames)2026215—
PL Polanddane.gov.pl — PESEL living persons (names)—215#15,346
PL Polanddane.gov.pl — PESEL living persons (surnames)2026212—
PL Polanddane.gov.pl — PESEL living persons (names)—212#15,298

Reference works 3

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

How do you pronounce Kosoń?
A machine transcription gives /kɔsɔɲ/ (IPA) for Polish.
In which country does Kosoń have the most bearers?
In Poland, the national register counted about 427 people named Kosoń, more than in any other country we hold, where it is most often spelled kosoń.
Where is Kosoń most common?
Kosoń is densest in Poland, where the national register counts about 1 in 90 thousand people carrying it.
How common is the name Kosoń?
In Poland, the national register counted 427 people named Kosoń in 2026, about 1 in 90 thousand residents.

What do you want to know about Kosoń?

Nobody replies to these one by one, but what readers ask decides what these pages answer next.

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/koso%C5%84

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, “Kosoń”. Data snapshot 2026-10-10.

See how Kosoń parses inside a full name →