Castillos

loc · Latin script

Recorded for both men and women· direction only, no split published

Castillos is a name written in the Latin script, most frequently recorded in Argentina.

rarermore common
  • UYUruguay
  • ARArgentina
  • DODominican Republic

Where the name is found, darker where our sources hold more of it. No national register counts its bearers anywhere we hold data, so the map carries no figures. One hue, darker where it is more common; hover a country for its figure.

Argentina (inferred from the name graph)

no count published

Sources
70 (measured from records)

Highest-authority source

measured from records inferred from the name graph

Meaning & origin

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

Attested in 1 language in the etymology graph.

Where in the world(measured from records)

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

Where Castillos is recorded, by country
CountryMost common spellingSources
AR Argentina—204Castillos30
MX Mexico——Castillos40
DO Dominican Republic——Castillos10
UY Uruguay—559Castillos19
ES Spain—24Castillos30
BR Brazil—33——

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

1920194019601980Rubén Castillos, b. 1922Osiris Rodríguez Castillos, b. 1925Hugo Castillos, b. 1932Juan José Castillos, b. 1944Carlos Castillos, b. 1958Ana Castillos, b. 1968

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 6 countries.

Reference works 1

  • 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

In which country does Castillos have the most bearers?
Castillos is most frequently recorded in Argentina, where it is most often spelled castillos.

What do you want to know about Castillos?

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

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, “Castillos”. Data snapshot 2026-10-10.

See how Castillos parses inside a full name →