Cousiño
surname · Latin script
Recorded for both men and women· direction only, no split published
Cousiño is a surname written in the Latin script, with more bearers in the United States than in any other country. In Belize it is the most common surname.
- CLChile≈1 in 107K(inferred from the name graph)
- USUnited States1 in 178K
- ARArgentina1 in 185K
carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). One hue, darker where it is more common; hover a country for its figure.
- United States (measured from records)
- Sources
- 240 (measured from records)
- ≈1 in 1.6K (inferred from the name graph)
1,868 people, 2010
Highest-authority source
Belize, est.
measured from records inferred from the name graph
Spellings & scripts(measured from records)
One other spelling is counted as the same name:
Locally spelled Cousino in US United States, GB United Kingdom, BZ Belize and 2 more.
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 11 languages in the etymology graph.
Where in the world(measured from records)
Cousiño 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 | — | 1,868 | 1 in 178K | 2.4K | Cousino | 240 |
| GB United Kingdom | — | ≈350 est. | ≈1 in 189K | — | Cousino | 11 |
| IT Italy | — | ≈280 est. | ≈1 in 224K | — | Cousino | 4 |
| BZ Belize | #1 | ≈250 est. | ≈1 in 1.6K | — | Cousino | 2 |
| AR Argentina | — | 246 | 1 in 185K | 246 | Cousiño | 24 |
| CL Chile | — | ≈170 est. | ≈1 in 107K | — | Cousiño | 28 |
| PY Paraguay | — | ≈57 est. | ≈1 in 126K | — | Cousiño | 6 |
| NZ New Zealand | — | ≈42 est. | ≈1 in 118K | — | Cousino | 1 |
1,868 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 2020; RENAPER — Apellidos (person counts, national). 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 3 sources across 2 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| AR Argentina | RENAPER — Apellidos (person counts, national) | — | 246 | — |
Register rows as of the 2026-10-09 data build.
Frequently asked questions
- In which country does Cousiño have the most bearers?
- In the United States, the national register counted about 1.9 thousand people named Cousiño, more than in any other country we hold, where it is most often spelled cousino.
- How common is the name Cousiño?
- In the United States, the national register counted 1,868 people named Cousiño in 2010, about 1 in 178 thousand residents.
- How common is Cousiño compared with other names?
- In Belize, Cousiño is the most common surname of 11,408 surnames recorded there.
What do you want to know about Cousiño?
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/cousi%C3%B1oThe 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, “Cousiño” — the most common surname in Belize. Data snapshot 2026-10-10.