Cossar
surname · Latin script
Recorded as a male name· opposite-gender records fall within measured source noise
Cossar is a surname written in the Latin script, most frequently recorded in the United States. Recorded meaning: Middle English cosser 'dealer, broker', 'horse-corser'; first attested Ralph le Kosser’ 1299 MESO (Ess).
Spellings & scripts(measured from records)
One other spelling is counted as the same name:
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)
Middle English cosser 'dealer, broker', 'horse-corser'; first attested Ralph le Kosser’ 1299 MESO (Ess)
Sources 1
- A Dictionary of English Surnames
Where in the world(measured from records)
Cossar counted together with the spellings and other-language forms grouped with it. Where a register counted another spelling, the row names it.
| Country | Most common spelling | ||
|---|---|---|---|
| US United States | — | 172 | — |
| AR Argentina | — | 35 | — |
| CH Switzerland | — | 5 | — |
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; RENAPER — Apellidos (person counts, national); 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).
Other recorded senses(measured from records)
Cossar is also recorded in one other lexicon, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.
In Catalan, to give body to
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
Ordered by how much of this spelling's record each language holds, so a sense from a language the name is barely used in sits last rather than first.
Notable people with this name(measured from records)
- Mariángeles Cossarb. 1990ARArgentinian volleyball player
- Rose Cossarb. 1991CACanadian rhythmic gymnast
- James CossarGBPh.D. University of Cambridge 1933
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 8 sources across 3 countries.
Reference works 2
- The Oxford Dictionary of Family Names in Britain and Ireland
- 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
- What does the name Cossar mean, and where does it come from?
- Middle English cosser 'dealer, broker', 'horse-corser'; first attested Ralph le Kosser’ 1299 MESO (Ess) Recorded by A Dictionary of English Surnames.
- In which country does Cossar have the most bearers?
- Cossar is most frequently recorded in the United States.
What do you want to know about Cossar?
Nobody replies to these one by one, but what readers ask decides what these pages answer next.
Query this name via API
curl https://api.mondonomo.ai/api/v1/name-graph/cossarThe same payload this page is built from: spellings and scripts, countries and languages, related names, and the registers that attest the form. Rate-limited for casual use; a free API key gives 1,000 requests a day, and bulk access is licensed separately.
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, “Cossar”. Data snapshot 2026-10-10.