Giacomini
surname · Latin script
Meaning: patronymic from a pet form of the personal name Giacomo
(measured from records)Officially recorded in 15 countries · latest register: BFS, 2024
/ʒiɐkumini/(machine-generated) Portuguese · model-generated
Giacomini is a surname written in the Latin script, with more bearers in Brazil than in any other country.
- CHSwitzerland1 in 39K(measured from records)
- BRBrazil1 in 43K
- ARArgentina1 in 83K
carrying the name, as counted by each country's national register. 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.
- Brazil (measured from records)
- Record sources
- 168 (measured from records)
- 1 in 39K (inferred from the name graph)
4,912 people
corpus datasets behind its best-documented spelling
strongest: highest-authority source
Switzerland
measured from records inferred from the name graph
Meaning & origin
(measured from records)patronymic from a pet form of the personal name Giacomo.
Cited for this meaning 1
- Dictionary of American Family Names
Attested in 1 language in the etymology graph.
Where in the world
(measured from records)Giacomini 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 | |||
|---|---|---|---|---|---|
| BR Brazil | 4,912 | 1 in 43K | 4.9K | — | — |
| US United States | 681 | 1 in 488K | 721 | Giacomini | 52 |
| AR Argentina | 548 | 1 in 83K | 548 | — | — |
| CH Switzerland | 214 | 1 in 39K | 214 | Giacomini | 9 |
| NL Netherlands | 78 | 1 in 222K | 78 | Giacomini | 4 |
| BE Belgium | 66 | 1 in 178K | 66 | Giacomini | 13 |
| UY Uruguay | 28 | 1 in 121K | 28 | — | — |
4,912 people counted by IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname). 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: IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); Census Bureau — Surname Frequency 2010; Census Bureau — Surname Frequency 2020; RENAPER — Apellidos (person counts, national); BFS — Familiennamen der Wohnbevölkerung (surnames); CBG Familienamenbank — Dutch surname bearer counts (GBA/BRP 2007); Familienaam.be — Belgian family-name frequency (population register); 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)Giacomini 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 Italian, de Giacomo com suf. plural -ini
as a nameDicionário dos sobrenomes italianos
In Italian, Variante di Giacomi
as a nameDizionario dei cognomi italiani
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)- Carlo Giacominib. 1840ITItalian neuroscientist (1840–1898)
- Gino Giacominib. 1878SMSammarinese politician (1878-1962)
- Valerio Giacominib. 1914ITItalian botanist (1914-1981)
- Massimo Giacominib. 1939ITItalian footballer and manager
- Amedeo Giacominib. 1939ITItalian Romance philologist and literary (1939-2006)
- Giuseppe Giacominib. 1940ITItalian opera singer (1940-2021)
- Gianni Giacominib. 1958ITItalian cyclist
- Breno Giacominib. 1985USAmerican football offensive lineman
- Audrey Giacominib. 1986FRFrench actress
- Andrea Giacominib. 1987ITItalian footballer
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)25 registers and reference works attest this spelling, across 15 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| BR Brazil | IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname) | — | 4.9K | #2,274 |
| US United States | Census Bureau — Surname Frequency 2020 | 2020 | 721 | #33,925 |
| US United States | Census Bureau — Surname Frequency 2010 | 2010 | 681 | #33,499 |
| US United States | Census Bureau — Surname Frequency 2000 | 2000 | 624 | #34,342 |
| AR Argentina | RENAPER — Apellidos (person counts, national) | — | 548 | — |
| CH Switzerland | BFS — Familiennamen der Wohnbevölkerung (surnames) | 2024 | 214 | #5,900 |
| NL Netherlands | CBG Familienamenbank — Dutch surname bearer counts (GBA/BRP 2007) | 2007 | 78 | #22,949 |
| BE Belgium | Familienaam.be — Belgian family-name frequency (population register) | 2008 | 66 | #21,381 |
| UY Uruguay | INE Uruguay — Apellidos más frecuentes 1902–2024 (Tableau Public) | — | 28 | — |
| US United States | wru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.) | — | — | — |
Reference works 5
- Dictionary of American Family Names
- Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
- Wikipedia surname tokens
- Wikidata name items (native-script + romanized given/family names)
- Cognomix.it (Nomix s.r.l.) — Italian surname origin dictionary
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 Giacomini mean, and where does it come from?
- patronymic from a pet form of the personal name Giacomo. Recorded by Dictionary of American Family Names.
- How do you pronounce Giacomini?
- It depends on the language: in Portuguese /ʒiɐkumini/; in Spanish /xjakomini/; in Italian /d͡ʒakomini/. Transcriptions are machine-generated except where a dictionary is named.
- In which country does Giacomini have the most bearers?
- In Brazil, the national register counted about 4.9 thousand people named Giacomini, more than in any other country we hold.
- Where is Giacomini most common?
- Measured as a share of residents rather than as a count, Giacomini is densest in Switzerland — about 1 in 39 thousand people — even though Brazil holds more of our records for it.
- How common is the name Giacomini?
- In Brazil, the national register counted 4,912 people named Giacomini, about 1 in 43 thousand residents.
What do you want to know about Giacomini?
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/giacominiThe 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, “Giacomini”. Data snapshot 2026-10-13.