Rômero

given name · Latin script

Recorded as a male name· opposite-gender records fall within measured source noise

Rômero is a male given name written in the Latin script, with more bearers in Argentina than in any other country: 356,015 people, counted by RENAPER, which ranks it 10th. Recorded meaning: From Spanish Romero, from Late Latin romaeus, from Byzantine Greek ῥωμαῖος (rhōmaîos, “Roman”). Introduced through the Catálogo alfabético de apellidos .

  • UYUruguay1 in 110(measured from records)
  • ARArgentina1 in 128
  • ECEcuador1 in 170

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.

Argentina (measured from records)

356,015 people

Record sources
224 (measured from records)

corpus datasets behind its best-documented spelling

strongest: highest-authority source

1 in 110 (inferred from the name graph)

Uruguay

measured from records inferred from the name graph

Name dossier (print, CSV)Make your nomograph ✦

Spellings & scripts

(measured from records)

One other spelling is counted as the same name:

Locally spelled Romero in AR Argentina, ES Spain, US United States and 2 more.

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)
Derivation of Rômero: each step is the form the one above it came from.
Rômero
  1. SpanishRomero(measured from records)
  2. Late Latinromaeus(measured from records)
  3. Byzantine Greekῥωμαῖοςrhōmaîos“Roman”(measured from records)

From Spanish Romero, from Late Latin romaeus, from Byzantine Greek ῥωμαῖος (rhōmaîos, “Roman”). Introduced through the Catálogo alfabético de apellidos .

Cited for this meaning 6

  • A dictionary of surnames
  • The Oxford Names Companion - The definitive guide to Surnames, First Names, and Place Names of the British Isles
  • Wiktionary
  • Dicionário dos sobrenomes italianos
  • Dicionario Sefaradi De SobrenomesDictionary Of Sephardic Surnames Inclusive Cristaos-Novos, Conversos, Marranos, Italianos,…

Attested across 26 languages in the etymology graph.

Where the surname Rômero is found

(measured from records)

Rômero 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 Rômero is recorded, by country
CountryMost common spellingSources
AR Argentina—356,0151 in 128356KRomero3
ES Spain—227,3911 in 220227KRomero105
US United States—208,6141 in 1.6K209KRomero224
EC Ecuador—99,1571 in 17099KRomero30
UY Uruguay—30,7381 in 11031K—1
CR Costa Rica—20,3501 in 25120K——
BR Brazil#310——8.8KRomero175

356,015 people counted by RENAPER — Apellidos (person counts, national). 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); Census Bureau — Surname Frequency 2010; INEC — civil registry names; IBGE — Nomes (census name API); INE Uruguay — Apellidos más frecuentes 1902–2024 (Tableau Public); TSE — electoral roll (padrón) names. 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)

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

  • Spanish surname88 spellings in the group

    Most recorded in Mexico, Argentina, Peru, United States

    Languages: Spanish, Arabic, Chinese

    Also written Romero, Ромеро, Römërö, Romer-O, Römerö

  • English surname42 spellings in the group

    Most recorded in United States, Philippines, United Kingdom, Spain

    Languages: English, German, Dutch

    Also written Romero, Romer-O, Römërö, Roemero, Römerö

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.

Evidence

(measured from records)

No register attests this spelling yet

None of the official registers or reference works in our corpus lists Rômero under this spelling. The statistics on this page rest on person records, and the related names are inferred from the name graph.

Frequently asked questions

What does the name Rômero mean, and where does it come from?
From Spanish Romero, from Late Latin romaeus, from Byzantine Greek ῥωμαῖος (rhōmaîos, “Roman”). Introduced through the Catálogo alfabético de apellidos . Recorded by A dictionary of surnames and The Oxford Names Companion - The definitive guide to Surnames, First Names, and Place Names of the British Isles and 4 other sources.
Is Rômero a male or female name?
Rômero is a male name in our records. Opposite-gender entries fall within the cross-gender noise we measure in the source data, so we don't report them as usage.
Which countries have the most people with the surname Rômero?
In Argentina, the national register counted about 356 thousand people named Rômero, more than in any other country we hold, where it is most often spelled romero. After it come Spain, United States, Ecuador and Uruguay; the country table on this page ranks them.
Where is Rômero most common?
Measured as a share of residents rather than as a count, Rômero is densest in Uruguay — about 1 in 110 people — even though Argentina holds more of our records for it.
How common is the name Rômero?
In Argentina, the national register counted 356,015 people named Rômero, about 1 in 128 residents.
How common is Rômero compared with other names?
In Brazil, Rômero is the 310th most common surname of 424,864 surnames recorded there.

What do you want to know about Rômero?

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/r%C3%B4mero

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, “Rômero” — ranked 10th in Argentina (RENAPER). Data snapshot 2026-10-13.

See how Rômero parses inside a full name →