Girólamo

surname · Latin script

Girólamo is a surname written in the Latin script, with more bearers in the United States than in any other country. Recorded meaning: Borrowed from Italian Girolamo.

rarermore common
  • ITItaly≈1 in 35M(inferred from the name graph)
  • CHSwitzerland1 in 263K
  • ARArgentina1 in 413K

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.

United States (measured from records)

558 people, 2010

Sources
137 (measured from records)

Highest-authority source

1 in 263K (inferred from the name graph)

Switzerland

measured from records inferred from the name graph

Name dossier (print, CSV)

Spellings & scripts(measured from records)

One other spelling is counted as the same name:

Locally spelled Girolamo in IT Italy, US United States, CH Switzerland and 1 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)

Borrowed from Italian Girolamo.

Sources 4

  • A concise dictionary of first names
  • Dictionary of American Family Names
  • Wiktionary
  • Dicionário dos sobrenomes italianos

Attested across 18 languages in the etymology graph.

Where in the world(measured from records)

Girólamo 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 Girólamo is recorded, by country
CountryMost common spellingSources
US United States—5581 in 596K558Girolamo106
BR Brazil—2751 in 770K275—1
AR Argentina—1101 in 413K110——
CH Switzerland—321 in 263K32Girolamo24
IT Italy#411≈2 est.≈1 in 35M12Girolamo137
BE Belgium—11 in 12M1Girolamo12

558 people counted by Census Bureau — Surname Frequency 2010, 2010. 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: ISTAT — Contanomi newborn per-name series (1999–2024, JSONP backend); Census Bureau — Surname Frequency 2010; IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); RENAPER — Apellidos (person counts, national); 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 names spelled this way(inferred from the name graph)

Girólamo is also recorded as another name, grouped separately because the records behind them do not connect to the one described above.

  • Spanish surname4 spellings in the group

    Most recorded in Argentina, Brazil, Venezuela, United States

    Languages: Spanish, Portuguese

    Also written Girolamo

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 Girólamo 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 Girólamo mean, and where does it come from?
Borrowed from Italian Girolamo. Recorded by A concise dictionary of first names and Dictionary of American Family Names and 2 other sources.
In which country does Girólamo have the most bearers?
In the United States, the national register counted about 558 people named Girólamo, more than in any other country we hold, where it is most often spelled girolamo.
Where is Girólamo most common?
Measured as a share of residents rather than as a count, Girólamo is densest in Switzerland — about 1 in 263 thousand people — even though United States holds more of our records for it.
How common is the name Girólamo?
In the United States, the national register counted 558 people named Girólamo in 2010, about 1 in 596 thousand residents.
How common is Girólamo compared with other names?
In Italy, Girólamo is the 411th most common surname of 502,013 surnames recorded there.

What do you want to know about Girólamo?

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/gir%C3%B3lamo

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, “Girólamo” — the 411th most common surname in Italy. Data snapshot 2026-10-10.

See how Girólamo parses inside a full name →