Ratto
surname · Latin script
Meaning: obsolete spelling of rato
Recorded as a female name· opposite-gender records fall within measured source noise
/ratto/(machine-generated) pronunciation, model-generated
Ratto is a surname written in the Latin script, with more bearers in Argentina than in any other country.
- ARArgentina1 in 20K(measured from records)
- PEPeru≈1 in 46K
- BRBrazil1 in 368K
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.
- Argentina (measured from records)
- Sources
- 79 (measured from records)
- 1 in 8.3K (inferred from the name graph)
2,284 people
Highest-authority source
Uruguay
measured from records inferred from the name graph
Meaning & origin(measured from records)
obsolete spelling of rato
Sources 1
- kaikki.org Wiktionary extract (IPA + transliterations)
Attested across 11 languages in the etymology graph.
Where in the world(measured from records)
Ratto 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 | |||
|---|---|---|---|---|---|
| AR Argentina | 2,284 | 1 in 20K | 2.3K | Ratto | 79 |
| IT Italy | ≈1,500 est. | ≈1 in 42K | listed | Ratto | 25 |
| US United States | 956 | 1 in 348K | 1.1K | Ratto | 72 |
| PE Peru | ≈690 est. | ≈1 in 46K | — | Ratto | 32 |
| BR Brazil | 575 | 1 in 368K | 575 | Ratto | 55 |
| FI Finland | 552 | 1 in 10K | 552 | Ratto | 2 |
| UY Uruguay | 409 | 1 in 8.3K | 409 | Ratto | 20 |
2,284 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); IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); Census Bureau — Surname Frequency 2010; Census Bureau — Surname Frequency 2000; INE Uruguay — Apellidos más frecuentes 1902–2024 (Tableau Public); DVV — Nimipalvelu (Finnish name service, per-name lookup); the italian-surnames-defelice-1978 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 recorded senses(measured from records)
Ratto is also recorded in 4 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.
In Italian, Variante di Ratti
as a nameDizionario dei cognomi italiani
In Finnish, pleasure, fun, enjoyment, amusement
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
In Latin, dative/ablative singular of rattus
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
In Italian, quick, swift, rapid
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)
- Roberto Rattob. 1899ARArgentinian musician (1900-1981)
- Cora Ratto de Sadoskyb. 1912ARArgentinian mathematician, human rights activist and Adjunct professor (1912-1981)
- Gianni Rattob. 1916ITItalian actor
- Patricia Rattob. 1962ARArgentinean writer and teacher
- Carlo Rattob. 1962ITresearcher
- Pietro Rattob. 1965ITItalian writer
- Giacomo Rattob. 1986ITItalian footballer
- Daniele Rattob. 1989ITItalian cyclist
- Rossella Rattob. 1993ITItalian cyclist
- Piero Rattob. 1998PEPeruvian 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)
Attested in 25 sources across 16 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| AR Argentina | RENAPER — Apellidos (person counts, national) | — | 2.3K | — |
| US United States | Census Bureau — Surname Frequency 2000 | 2000 | 1.1K | #21,526 |
| US United States | Census Bureau — Surname Frequency 2020 | 2020 | 1K | #25,227 |
| US United States | Census Bureau — Surname Frequency 2010 | 2010 | 956 | #25,771 |
| BR Brazil | IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname) | — | 575 | #15,018 |
| UY Uruguay | INE Uruguay — Apellidos más frecuentes 1902–2024 (Tableau Public) | — | 409 | — |
| IT Italy | Dizionario dei Cognomi Italiani (De Felice, 1978) | — | — | — |
| IT Italy | 意大利语姓名译名手册 (Xinhua Italian Name Manual) | — | — | — |
| US United States | wru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.) | — | — | — |
Reference works 4
- Wikipedia surname tokens
- Wikidata name items (native-script + romanized given/family names)
- Rymut, Słownik nazwisk współcześnie w Polsce używanych (10 vols, IJP PAN, Kraków 1992–1994) — every Polish surname in the PESEL register at the end of 1990, with bearer counts nationally and per voivodeship1990
- 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 Ratto mean, and where does it come from?
- obsolete spelling of rato Recorded by kaikki.org Wiktionary extract (IPA + transliterations).
- How do you pronounce Ratto?
- A machine transcription gives /ratto/ (IPA) for Spanish.
- In which country does Ratto have the most bearers?
- In Argentina, the national register counted about 2.3 thousand people named Ratto, more than in any other country we hold, where it is most often spelled ratto.
- Where is Ratto most common?
- Measured as a share of residents rather than as a count, Ratto is densest in Uruguay — about 1 in 8.3 thousand people — even though Argentina holds more of our records for it.
- How common is the name Ratto?
- In Argentina, the national register counted 2,284 people named Ratto, about 1 in 20 thousand residents.
What do you want to know about Ratto?
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/rattoThe 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, “Ratto”. Data snapshot 2026-10-10.