Cosin
surname · Latin script
(measured from records)Officially recorded in 7 countries · latest register: INSEE, 1991
/kosin/(machine-generated) Spanish · model-generated
Cosin is a surname written in the Latin script, with more bearers in Spain than in any other country. Recorded meaning: Main GB Location (1881): Gloucs. see Cousin .
- ESSpain1 in 57K(measured from records)
- BRBrazil1 in 730K
- ARArgentina1 in 1.1M
carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). Countries with no figure are shown too: flat where a national register lists the name without counting it, hatched where only our records hold it. One hue, darker where it is more common; hover a country for its figure.
- Spain (measured from records)
- Record sources
- 71 (measured from records)
- 1 in 57K (inferred from the name graph)
873 people
corpus datasets behind its best-documented spelling
strongest: highest-authority source
Spain
measured from records inferred from the name graph
Meaning & origin
(measured from records)Main GB Location (1881): Gloucs. see Cousin .
Cited for this meaning 2
- The Oxford Dictionary of Family Names in Britain and Ireland
- Encyclopedia of surnames [the complete companion to tracing your names history]
Attested in 1 language in the etymology graph.
Where in the world
(measured from records)Cosin 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 | |||
|---|---|---|---|---|---|
| ES Spain | 873 | 1 in 57K | 873 | Cosin | 71 |
| BR Brazil | 290 | 1 in 730K | 290 | — | 1 |
| PH Philippines | ≈100 est. | ≈1 in 1.1M | — | Cosin | 5 |
| AR Argentina | 40 | 1 in 1.1M | 40 | Cosin | 28 |
| FR France | ≈36 est. | ≈1 in 1.9M | listed | Cosin | 43 |
873 people counted by INE — Padrón per-token widgets (current living counts, given + apellidos). 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: INE — Padrón per-token widgets (current living counts, given + apellidos); INE — Apellidos más frecuentes (Padrón Municipal); IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); RENAPER — Apellidos (person counts, national); the fr-insee-noms 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).
Notable people with this name
(measured from records)- Richard Cosinb. 1501English politician
- John Cosinb. 1594GBEnglish churchman
- Virginia Cosinb. 1973VEVenezuelan writer
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).
How to address them
(machine-generated)Evidence
(measured from records)11 registers and reference works attest this spelling, across 7 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| ES Spain | INE — Apellidos más frecuentes (Padrón Municipal) | — | 873 | #5,001 |
| ES Spain | INE — Padrón per-token widgets (current living counts, given + apellidos) | — | 873 | #4,999 |
| BR Brazil | IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname) | — | 290 | #27,183 |
| AR Argentina | RENAPER — Apellidos (person counts, national) | — | 40 | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1981 | 11 | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1961 | 9 | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1971 | 7 | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1951 | 6 | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1921 | 5 | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1941 | 3 | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1991 | — | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1931 | — | — |
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 Cosin mean, and where does it come from?
- Main GB Location (1881): Gloucs. see Cousin . Recorded by The Oxford Dictionary of Family Names in Britain and Ireland and Encyclopedia of surnames [the complete companion to tracing your names history].
- How do you pronounce Cosin?
- It depends on the language: in Spanish /kosin/; in Portuguese /kuʃĩ/. Transcriptions are machine-generated except where a dictionary is named.
- In which country does Cosin have the most bearers?
- In Spain, the national register counted about 873 people named Cosin, more than in any other country we hold, where it is most often spelled cosin.
- Where is Cosin most common?
- Cosin is densest in Spain, where the national register counts about 1 in 57 thousand people carrying it.
- How common is the name Cosin?
- In Spain, the national register counted 873 people named Cosin, about 1 in 57 thousand residents.
What do you want to know about Cosin?
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/cosinThe 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, “Cosin”. Data snapshot 2026-10-13.