Ratso
surname · Latin script
Meaning: Variante di Ragusa
Recorded as a male name· opposite-gender records fall within measured source noise
Ratso is a surname written in the Latin script, with more bearers in Italy than in any other country. In France it is the 36th most common surname.
- ITItaly≈1 in 605as Russo(inferred from the name graph)
- FRFrance≈1 in 1.5Kas Rousseau
- BEBelgium1 in 2.9Kas Rousseau
carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). Where a country counts another spelling of the name rather than Ratso itself, the figure is that spelling’s, and it is named. One hue, darker where it is more common; hover a country for its figure.
- Italy (inferred from the name graph)
- 3 (measured from records)
- Sources
- 483 (measured from records)
- ≈1 in 605 (inferred from the name graph)
≈100,000 named Russo, est.
recorded for this name
Highest-authority source
Italy, est., as Russo
measured from records inferred from the name graph
Spellings & scripts(measured from records)
One other spelling is counted as the same name:
Locally spelled Russo in US United States, IT Italy and Rousseau in FR France, BE Belgium.
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)
Variante di Ragusa
Sources 1
- Dizionario dei cognomi italiani
Where in the world(measured from records)
Ratso 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 | ||||
|---|---|---|---|---|---|---|
| IT Italy | #172 | ≈100,000 est. | ≈1 in 605 | 1 | Russo | 148 |
| US United States | #545 | 48,696as Russo | 1 in 6.8K | 49K | Russo | 483 |
| FR France | #36 | ≈45,000 est. | ≈1 in 1.5K | 5.9K | Rousseau | 351 |
| AR Argentina | — | 16,597as Russo | 1 in 2.7K | 17K | — | 5 |
| BR Brazil | — | 12,573as Russo | 1 in 17K | 13K | — | 6 |
| BE Belgium | #108 | 4,015as Rousseau | 1 in 2.9K | 4K | Rousseau | 106 |
| UY Uruguay | — | 2,826as Risso | 1 in 1.2K | 2.8K | — | — |
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: Census Bureau — Surname Frequency 2010; INSEE — Fichier des noms de famille (1891–2000); RENAPER — Apellidos (person counts, national); IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); ISTAT — Contanomi newborn per-name series (1999–2024, JSONP backend); 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).
Evidence(measured from records)
Attested in 5 sources across 3 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| BE Belgium | Familienaam.be — Belgian family-name frequency (population register) | 2008 | 1 | #211,511 |
| IT Italy | Dizionario dei Cognomi Italiani (De Felice, 1978) | — | — | — |
Reference works 2
- Wikipedia given-name 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 Ratso mean, and where does it come from?
- Variante di Ragusa Recorded by Dizionario dei cognomi italiani.
- In which country does Ratso have the most bearers?
- Mondonomo estimates about 103 thousand people named Russo in Italy, more than in any other country we hold.
- How common is the name Ratso?
- In the United States, the national register counted 48,696 people named Russo in 2010, about 1 in 6.8 thousand residents.
- How common is Ratso compared with other names?
- In Italy, Ratso is the 172nd most common surname of 502,013 surnames recorded there.
What do you want to know about Ratso?
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/ratsoThe 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, “Ratso” — the 172nd most common surname in Italy. Data snapshot 2026-10-10.