Castellanos

surname · Latin script

Meaning: masculine plural of castellano (kaikki.org Wiktionary extract (IPA + transliterations))

(measured from records)Officially recorded in 19 countries · latest register: Census Bureau, 2020

/kasteʎanos/(machine-generated) Spanish · model-generated

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Castellanos is a surname written in the Latin script, with more bearers in Mexico than in any other country. In Guatemala it is the 19th most common surname. Castellanos is also written Кастельянос in Cyrillic and คาสเตลาโนส in Thai.

  • HNHonduras≈1 in 270(inferred from the name graph)
  • GTGuatemala≈1 in 470
  • COColombia≈1 in 780

carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). Where a country counts another spelling of the name rather than Castellanos itself, the figure is that spelling’s, and it is named. One hue, darker where it is more common; hover a country for its figure.

Mexico (inferred from the name graph)

≈110,000 people, est.

3 (measured from records)

recorded for this name

Record sources
386 (measured from records)

corpus datasets behind its best-documented spelling

strongest: highest-authority source

≈1 in 271 (inferred from the name graph)

Honduras, est.

measured from records inferred from the name graph

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Castellanos in other scripts: Cyrillic and Thai

(measured from records)
CastellanosLatin(measured from records)
КастельяносCastellanos in Cyrillic(measured from records)
คาสเตลาโนสCastellanos in Thai(measured from records)

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.

How to pronounce Castellanos

  • Spanish:/kasteʎanos/(machine-generated) model-generated

Readings marked model-generated were transcribed by a model; the others are quoted from the dictionary named.

Meaning & origin

(measured from records)

masculine plural of castellano

Cited for this meaning 1

  • kaikki.org Wiktionary extract (IPA + transliterations)

Attested across 2 languages in the etymology graph.

Where the surname Castellanos is found

(measured from records)

Castellanos 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.

Where Castellanos is recorded, by country
CountryMost common spellingSources
MX Mexico#188≈110,000 est.≈1 in 1.2K2.4KCastellanos209
CO Colombia#154≈68,000 est.≈1 in 78142Castellanos160
HN Honduras#33≈40,000 est.≈1 in 271—Castellanos67
GT Guatemala#19≈39,000 est.≈1 in 472—Castellanos89
US United States—30,8591 in 11K31KCastellanos386
VE Venezuela#173≈30,000 est.≈1 in 947—Castellanos67
SV El Salvador#197≈5,700 est.≈1 in 1.1K—Castellanos50

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: RENAPO — name frequencies (eduardofv dataset); Census Bureau — Surname Frequency 2010; Census Bureau — Surname Frequency 2020; the co-datosgov-candidates 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).

Other names spelled this way

(inferred from the name graph)

Castellanos is also recorded as 2 other names, grouped separately because the records behind them do not connect to the one described above.

  • English surname12 spellings in the group

    Most recorded in United States, United Kingdom, Canada, Australia

    Languages: English, German, Dutch

    Also written Castellano-S, Castellaños, Castellanös, Castellanoes, Çastellanos

  • a separate name2 spellings in the group

    Also written Castellano-S

46 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.

Other recorded senses

(measured from records)

Castellanos 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 Asturian, masculine plural of castellanu

    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)
19201940196019802000Rosario Castellanos, b. 1925Jorge Valdano, b. 1955Valentín Mariano José Castellanos Giménez, b. 1998

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)
FormalEstimado/a Castellanos,Dear Castellanos, (English)
InformalEstimado/a Castellanos,Hello, (English)

Evidence

(measured from records)

28 registers and reference works attest this spelling, across 19 countries.

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

Frequently asked questions

What does the name Castellanos mean, and where does it come from?
masculine plural of castellano Recorded by kaikki.org Wiktionary extract (IPA + transliterations).
How do you pronounce Castellanos?
In Spanish /kasteʎanos/. Transcriptions are machine-generated except where a dictionary is named.
Which countries have the most people with the surname Castellanos?
Mondonomo estimates about 110 thousand people named Castellanos in Mexico, more than in any other country we hold, where it is most often spelled castellanos. After it come Colombia, Honduras, Guatemala and United States; the country table on this page ranks them.
How common is the name Castellanos?
In the United States, the national register counted 30,859 people named Castellanos in 2010, about 1 in 11 thousand residents.
How common is Castellanos compared with other names?
In Mexico, Castellanos is the 188th most common surname of 206,803 surnames recorded there.

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

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, “Castellanos” — ranked 165th in Mexico (RENAPO). Data snapshot 2026-10-13.

See how Castellanos parses inside a full name →