Castiello
surname · Latin script
Meaning: alternative form of castello: castle (kaikki.org Wiktionary extract (IPA + transliterations))
(measured from records)Officially recorded in 10 countries · latest register: BFS, 2024
/kastieʎo/(machine-generated) Spanish · model-generated
Castiello is a surname written in the Latin script, with more bearers in Italy than in any other country.
- ITItaly≈1 in 12K(inferred from the name graph)
- ESSpain1 in 187K
- ARArgentina1 in 239K
carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). Countries with no figure are shown too: flat where a national register lists the name without counting it, hatched where only our records hold it. One hue, darker where it is more common; hover a country for its figure.
- Italy (inferred from the name graph)
- Record sources
- 80 (measured from records)
- ≈1 in 12K (inferred from the name graph)
≈4,900 people, est.
corpus datasets behind its best-documented spelling
strongest: highest-authority source
Italy, est.
measured from records inferred from the name graph
Spellings & scripts
(measured from records)One other spelling is 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.
How to pronounce Castiello
- Spanish:/kastieʎo/(machine-generated) model-generated
- Italian:/kasˈtjɛl.lo/(recorded in a dictionary) from Wiktionary
Readings marked model-generated were transcribed by a model; the others are quoted from the dictionary named.
Meaning & origin
(measured from records)alternative form of castello: castle
Cited for this meaning 1
- kaikki.org Wiktionary extract (IPA + transliterations)
Where the surname Castiello is found
(measured from records)Castiello 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 | |||
|---|---|---|---|---|---|
| IT Italy | ≈4,900 est. | ≈1 in 12K | listed | Castiello | 80 |
| ES Spain | 267 | 1 in 187K | 267 | Castiello | 45 |
| US United States | 210 | 1 in 1.6M | 214 | Castiello | 36 |
| AR Argentina | 190 | 1 in 239K | 190 | Castiello | 28 |
| MX Mexico | ≈72 est. | ≈1 in 1.8M | — | Castiello | 19 |
| CH Switzerland | 35 | 1 in 240K | 35 | Castiello | 7 |
| BE Belgium | 20 | 1 in 586K | 20 | Castiello | 5 |
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: the xinhua-italian-manual register; RENAPER — Apellidos (person counts, national); INE — Padrón per-token widgets (current living counts, given + apellidos); INE — Apellidos más frecuentes (Padrón Municipal); Census Bureau — Surname Frequency 2010; Census Bureau — Surname Frequency 2020; BFS — Familiennamen der Wohnbevölkerung (surnames); Familienaam.be — Belgian family-name frequency (population 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 recorded senses
(measured from records)Castiello is also recorded in 3 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.
In Italian, variante regional de Castello
as a nameDicionário dos sobrenomes italianos
In osp, castle; stronghold, fortress
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
In Aragonese, castle
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)- Francesco Castiellob. 1942ITItalian politician (1942–2024)
- Giuseppina Castiellob. 1971ITItalian politician
- Ascensión Castiello AlastueyESSpanish politician
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)17 registers and reference works attest this spelling, across 10 countries.
Register rows as of the 2026-10-09 data build.
Frequently asked questions
- What does the name Castiello mean, and where does it come from?
- alternative form of castello: castle Recorded by kaikki.org Wiktionary extract (IPA + transliterations).
- How do you pronounce Castiello?
- It depends on the language: in Spanish /kastieʎo/; in Italian /kasˈtjɛl.lo/ (Wiktionary). Transcriptions are machine-generated except where a dictionary is named.
- Which countries have the most people with the surname Castiello?
- Mondonomo estimates about 4.9 thousand people named Castiello in Italy, more than in any other country we hold, where it is most often spelled castiello. After it come Spain, United States, Argentina and Mexico; the country table on this page ranks them.
- How common is the name Castiello?
- In Spain, the national register counted 267 people named Castiello, about 1 in 187 thousand residents.
What do you want to know about Castiello?
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/castielloThe 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, “Castiello”. Data snapshot 2026-10-13.