Giacomi

surname · Latin script

Meaning: a surname transferred from the given name

Recorded for both men and women· direction only, no split published

/ɟʝakomi/(machine-generated) pronunciation, model-generated

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

rarermore common
  • PYParaguay≈1 in 62K(inferred from the name graph)
  • ITItaly≈1 in 110K
  • FRFrance≈1 in 320K

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.

Italy (inferred from the name graph)

≈570 people, est.

Sources
34 (measured from records)

Highest-authority source

≈1 in 62K (inferred from the name graph)

Paraguay, est.

measured from records inferred from the name graph

Name dossier (print, CSV)

Meaning & origin(measured from records)

a surname transferred from the given name

Sources 1

  • kaikki.org Wiktionary extract (IPA + transliterations)

Attested in 1 language in the etymology graph.

Where in the world(measured from records)

Giacomi 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 Giacomi is recorded, by country
CountryMost common spellingSources
IT Italy≈570 est.≈1 in 110KlistedGiacomi9
FR France≈210 est.≈1 in 320K25——
US United States1171 in 2.8M126Giacomi16
PY Paraguay≈120 est.≈1 in 62K—Giacomi12
BR Brazil1031 in 2.1M103Giacomi19
AR Argentina771 in 591K77Giacomi34

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); Census Bureau — Surname Frequency 2010; Census Bureau — Surname Frequency 2020; IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); the italian-surnames-defelice-1978 register; INSEE — Fichier des noms de famille (1891–2000). 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)

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

  • Italian surname2 spellings in the group

    Most recorded in Italy, United States, Paraguay, Spain

    Also written Giacomì

25 further groups record this spelling and are not listed here.

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.

Other recorded senses(measured from records)

Giacomi is also recorded in one other lexicon, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.

  • In Italian, do nome hebraico Yahaqob; forma fixada a partir de Jacomi

    as a nameDicionário dos sobrenomes italianos

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)

190019201940196019802000Pierre-Paul Giacomi, b. 1917Mario Giacomi, b. 1949Charles Giacomi, b. 1954Roberto Giacomi, b. 1986

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

Evidence(measured from records)

Attested in 13 sources across 7 countries.

Official registers attesting Giacomi
CountryRegisterYearCountRank
US United StatesCensus Bureau — Surname Frequency 20202020126#137,553
US United StatesCensus Bureau — Surname Frequency 20102010117#142,108
US United StatesCensus Bureau — Surname Frequency 20002000104#146,011
BR BrazilIBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname)—103#61,986
AR ArgentinaRENAPER — Apellidos (person counts, national)—77—
FR FranceINSEE — Fichier des noms de famille (1891–2000)195136—
FR FranceINSEE — Fichier des noms de famille (1891–2000)196133—
FR FranceINSEE — Fichier des noms de famille (1891–2000)194129—
FR FranceINSEE — Fichier des noms de famille (1891–2000)199125—
FR FranceINSEE — Fichier des noms de famille (1891–2000)198125—
FR FranceINSEE — Fichier des noms de famille (1891–2000)197125—
FR FranceINSEE — Fichier des noms de famille (1891–2000)191120—

Reference works 2

  • Wikipedia surname tokens
  • 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 Giacomi mean, and where does it come from?
a surname transferred from the given name Recorded by kaikki.org Wiktionary extract (IPA + transliterations).
How do you pronounce Giacomi?
A machine transcription gives /ɟʝakomi/ (IPA) for Spanish.
In which country does Giacomi have the most bearers?
Mondonomo estimates about 568 people named Giacomi in Italy, more than in any other country we hold, where it is most often spelled giacomi.
How common is the name Giacomi?
In the United States, the national register counted 117 people named Giacomi in 2010, about 1 in 2.8 million residents.

What do you want to know about Giacomi?

Nobody replies to these one by one, but what readers ask decides what these pages answer next.

Please leave out anyone's personal details (see Privacy).

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

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, “Giacomi”. Data snapshot 2026-10-10.

See how Giacomi parses inside a full name →