Caiño

surname · Latin script

Caiño is a surname written in the Latin script, most frequently recorded in Argentina. Recorded meaning: From Biblical Hebrew קַיִן (Káyin, “craftsman”).

Name dossier (print, CSV)

Spellings & scripts(measured from records)

3 other spellings are 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)

From Biblical Hebrew קַיִן (Káyin, “craftsman”).

Sources 2

  • Il grande libro dei nomi per bebè. Significato, origini, curiosità. Oltre 7000 nomi per bambine e bambini Significato,…
  • Wiktionary

Where in the world(measured from records)

Caiño counted together with the spellings and other-language forms grouped with it. Where a register counted another spelling, the row names it.

Where Caiño is recorded, by country
CountryMost common spelling
AR Argentina—475—
UY Uruguay—153—
ES Spain—124—
BR Brazil—122—
EC Ecuador—2—

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: RENAPER — Apellidos (person counts, national); INE Uruguay — Apellidos más frecuentes 1902–2024 (Tableau Public); INE — Apellidos más frecuentes (Padrón Municipal); IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); INEC — Visualizador de Nombres y Apellidos, per-token query API (1900–2024). 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)

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

  • Spanish surname8 spellings in the group

    Most recorded in Argentina, Philippines, United States, Brazil

    Languages: Spanish, English, Portuguese

    Also written Caino, Caíno

  • Indonesian surname3 spellings in the group

    Most recorded in Philippines, Indonesia

    Also written Caino

  • a separate name2 spellings in the group

    Also written Caino

2 further groups record this spelling and are not listed here.

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.

Evidence(measured from records)

Attested in 3 sources across 2 countries.

Official registers attesting Caiño
CountryRegisterYearCountRank
EC EcuadorINEC — Visualizador de Nombres y Apellidos, per-token query API (1900–2024)—184—
ES SpainINE — Apellidos más frecuentes (Padrón Municipal)—124#23,660
ES SpainINE — Padrón per-token widgets (current living counts, given + apellidos)—124#23,538
EC EcuadorINEC — Visualizador de Nombres y Apellidos, per-token query API (1900–2024)20147—
EC EcuadorINEC — Visualizador de Nombres y Apellidos, per-token query API (1900–2024)20226—
EC EcuadorINEC — Visualizador de Nombres y Apellidos, per-token query API (1900–2024)20166—
EC EcuadorINEC — Visualizador de Nombres y Apellidos, per-token query API (1900–2024)20076—
EC EcuadorINEC — Visualizador de Nombres y Apellidos, per-token query API (1900–2024)19796—
EC EcuadorINEC — Visualizador de Nombres y Apellidos, per-token query API (1900–2024)19825—
EC EcuadorINEC — Visualizador de Nombres y Apellidos, per-token query API (1900–2024)20204—
EC EcuadorINEC — Visualizador de Nombres y Apellidos, per-token query API (1900–2024)19944—
EC EcuadorINEC — Visualizador de Nombres y Apellidos, per-token query API (1900–2024)19934—

Register rows as of the 2026-10-09 data build.

Frequently asked questions

What does the name Caiño mean, and where does it come from?
From Biblical Hebrew קַיִן (Káyin, “craftsman”). Recorded by Il grande libro dei nomi per bebè. Significato, origini, curiosità. Oltre 7000 nomi per bambine e bambini Significato,… and Wiktionary.
In which country does Caiño have the most bearers?
Caiño is most frequently recorded in Argentina.

What do you want to know about Caiño?

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/cai%C3%B1o

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, “Caiño”. Data snapshot 2026-10-10.

See how Caiño parses inside a full name →