Ferreiro

surname · Latin script

Meaning: blacksmith (iron forger)

(measured from records)Officially recorded in 10 countries

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

Say it inExplore pronunciation →

Ferreiro is a surname written in the Latin script, with more bearers in Spain than in any other country.

  • UYUruguay1 in 2.7K(measured from records)
  • ESSpain1 in 4.2K
  • ARArgentina1 in 13K

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 Ferreiro itself, the figure is that spelling’s, and it is named. 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.

Spain (measured from records)

11,835 people

2 (measured from records)

recorded for this name

Record sources
165 (measured from records)

corpus datasets behind its best-documented spelling

strongest: highest-authority source

1 in 2.7K (inferred from the name graph)

Uruguay

measured from records inferred from the name graph

Spellings & scripts

(measured from records)
FerreiroLatin(measured from records)
ФеррейроCyrillic(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.

Meaning & origin

(measured from records)

blacksmith (iron forger)

Cited for this meaning 1

  • kaikki.org Wiktionary extract (IPA + transliterations)

Attested across 5 languages in the etymology graph.

Where the surname Ferreiro is found

(measured from records)

Ferreiro 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 Ferreiro is recorded, by country
CountryMost common spellingSources
ES Spain#58611,8351 in 4.2K12KFerreiro140
BR Brazil—5,2941 in 40K5.3K—1
AR Argentina#8863,4331 in 13K3.4KFerreiro79
MX Mexico—≈1,700 est.≈1 in 77K36Ferreiro94
UY Uruguay#3621,2681 in 2.7K1.3KFerreiro39
PY Paraguay—≈210 est.≈1 in 34K—Ferreiro22

11,835 people counted by INE — Padrón per-token widgets (current living counts, given + apellidos). 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 — Padrón per-token widgets (current living counts, given + apellidos); INE — Apellidos más frecuentes (Padrón Municipal); IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); RENAPO — name frequencies (eduardofv dataset); INE Uruguay — Apellidos más frecuentes 1902–2024 (Tableau Public). 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)

Ferreiro is also recorded in 2 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.

  • In Portuguese, smith; Lisbon; other origin

    as a nameDicionario Sefaradi De SobrenomesDictionary Of Sephardic Surnames Inclusive Cristaos-Novos, Conversos, Marranos, Italianos,…

  • In roa-opt, blacksmith (person who forges iron)

    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)
19201940196019802000Roberto Ferreiro, b. 1935Franco Ferreiro, b. 1984David Ferreiro, b. 1988

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 Ferreiro,Dear Ferreiro, (English)
InformalEstimado/a Ferreiro,Hello, (English)

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 Ferreiro mean, and where does it come from?
blacksmith (iron forger) Recorded by kaikki.org Wiktionary extract (IPA + transliterations).
What are other forms of the name Ferreiro?
In the etymology graph, Ferro is a form of the same name in other languages.
How do you pronounce Ferreiro?
It depends on the language: in Spanish /fereiɾo/; in Portuguese /feˈhe(ɪ̯).ɾo/ (Wiktionary). Transcriptions are machine-generated except where a dictionary is named.
Which countries have the most people with the surname Ferreiro?
In Spain, the national register counted about 12 thousand people named Ferreiro, more than in any other country we hold, where it is most often spelled ferreiro. After it come Brazil, Argentina, Mexico and Uruguay; the country table on this page ranks them.
Where is Ferreiro most common?
Measured as a share of residents rather than as a count, Ferreiro is densest in Uruguay — about 1 in 2.7 thousand people — even though Spain holds more of our records for it.
How common is the name Ferreiro?
In Spain, the national register counted 11,835 people named Ferreiro, about 1 in 4.2 thousand residents.
How common is Ferreiro compared with other names?
In Spain, Ferreiro is the 586th most common surname of 395,154 surnames recorded there.

What do you want to know about Ferreiro?

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

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, “Ferreiro” — the 586th most common surname in Spain. Data snapshot 2026-10-13.

See how Ferreiro parses inside a full name →