Castilho
surname · Latin script
Meaning: one who lives in the castle
Recorded as a male name· opposite-gender records fall within measured source noise
/kɐʃtiʎu/(machine-generated) pronunciation, model-generated
Castilho is a surname written in the Latin script, with more bearers in Brazil than in any other country.
- BRBrazil≈1 in 4.1K(inferred from the name graph)
- PTPortugal≈1 in 8.9K
- USUnited States1 in 2.7M
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.
- Brazil (inferred from the name graph)
- Sources
- 178 (measured from records)
- ≈1 in 4.1K (inferred from the name graph)
≈51,000 people, est.
Highest-authority source
Brazil, est.
measured from records inferred from the name graph
Meaning & origin(measured from records)
one who lives in the castle
Sources 1
- Dicionario Sefaradi De SobrenomesDictionary Of Sephardic Surnames Inclusive Cristaos-Novos, Conversos, Marranos, Italianos,…
Where in the world(measured from records)
Castilho 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 | ||||
|---|---|---|---|---|---|---|
| BR Brazil | #236 | ≈51,000 est. | ≈1 in 4.1K | 303 | Castilho | 178 |
| PT Portugal | #410 | ≈1,200 est. | ≈1 in 8.9K | — | Castilho | 67 |
| AO Angola | #992 | ≈620 est. | ≈1 in 53K | — | Castilho | 10 |
| FR France | — | ≈170 est. | ≈1 in 405K | 22 | Castilho | 2 |
| US United States | — | 123 | 1 in 2.7M | 238 | Castilho | 118 |
| UY Uruguay | — | 70 | 1 in 48K | 70 | Castilho | 9 |
| CH Switzerland | — | 29 | 1 in 290K | 29 | — | 7 |
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: Brasil.IO genero-nomes (IBGE Censo 2010 mirror, CC-BY-SA); Census Bureau — Surname Frequency 2010; Census Bureau — Surname Frequency 2020; INE Uruguay — Apellidos más frecuentes 1902–2024 (Tableau Public); INSEE — Fichier des noms de famille (1891–2000); BFS — Familiennamen der Wohnbevölkerung (surnames). 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)
- Diogo de Castilhob. 1490ESPortuguese architect
- António Feliciano de Castilhob. 1800PTPortuguese writer (1800–1875)
- Júlio de Castilhob. 1840PTPortuguese journalist, poet, writer and politician (1840-1919)
- Augusto de Castilhob. 1841PTPortuguese politician
- Almira Castilhob. 1924BRBrazilian singer, songwriter, dancer
- Carlos José Castilhob. 1927BRBrazilian footballer and manager (1927–1987)
- Bebeto Castilhob. 1939BRBrazilian musician (1939–2023)
- José Manuel Tavares Castilhob. 1947PThistorian (1947-)
- Iury Castilhob. 1995BRBrazilian association football player
- Ana Cláudia Castilho BaroneBRBrazilian researcher (ORCID 000-0001-6395-7668)
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)
Attested in 16 sources across 9 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| BR Brazil | IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname) | — | 75K | #342 |
| US United States | Census Bureau — Surname Frequency 2020 | 2020 | 238 | #84,785 |
| US United States | Census Bureau — Surname Frequency 2010 | 2010 | 123 | #136,449 |
| UY Uruguay | INE Uruguay — Apellidos más frecuentes 1902–2024 (Tableau Public) | — | 70 | — |
| CH Switzerland | BFS — Familiennamen der Wohnbevölkerung (surnames) | 2024 | 29 | #28,044 |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1991 | 22 | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1971 | 14 | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1981 | 11 | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1961 | 5 | — |
| US United States | wru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.) | — | — | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1951 | — | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1941 | — | — |
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
- What does the name Castilho mean, and where does it come from?
- one who lives in the castle Recorded by Dicionario Sefaradi De SobrenomesDictionary Of Sephardic Surnames Inclusive Cristaos-Novos, Conversos, Marranos, Italianos,….
- How do you pronounce Castilho?
- A machine transcription gives /kɐʃtiʎu/ (IPA) for Portuguese.
- In which country does Castilho have the most bearers?
- Mondonomo estimates about 51 thousand people named Castilho in Brazil, more than in any other country we hold, where it is most often spelled castilho.
- How common is the name Castilho?
- In the United States, the national register counted 123 people named Castilho in 2010, about 1 in 2.7 million residents.
- How common is Castilho compared with other names?
- In Brazil, Castilho is the 236th most common surname of 424,864 surnames recorded there.
What do you want to know about Castilho?
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/castilhoThe 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, “Castilho” — the 236th most common surname in Brazil. Data snapshot 2026-10-10.