Rato

surname · Latin script

Meaning, in Portuguese: mouse

Recorded as a female name· opposite-gender records fall within measured source noise

Rato is a surname written in the Latin script, with more bearers in South Africa than in any other country.

rarermore common
  • LYLibya≈1 in 56K(inferred from the name graph)
  • ZASouth Africa≈1 in 87K
  • HRCroatia1 in 264K

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 Rato 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.

South Africa (inferred from the name graph)

≈650 people, est.

3 (measured from records)

recorded for this name

Sources
83 (measured from records)

Highest-authority source

≈1 in 56K (inferred from the name graph)

Libya, est.

measured from records inferred from the name graph

Spellings & scripts(measured from records)

RutuLatin(measured from records)
রুতBengali(measured from records)
РатоCyrillic(measured from records)

One other spelling is counted as the same name:

Locally spelled Rutu in US United States, NZ New Zealand and Rata in BD Bangladesh.

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)

mouse

Sources 1

  • A Frequency Dictionary of Portuguese

Attested across 2 languages in the etymology graph.

How Rato is read(measured from records)

Rato is one spelling over 5 language communities, and the dictionaries record it differently in 3 of them. Each row is what a source recorded for that language, beside the share of this name’s records the language holds. No single row is the name’s meaning.

  • Portuguese32%

    mouse

    as a wordA Frequency Dictionary of Portuguese

    rat (any rodent of the genus Rattus)

    as a wordkaikki.org Wiktionary extract (IPA + transliterations)

  • Spanish22%

    a while, bit (a short period of time)

    as a wordkaikki.org Wiktionary extract (IPA + transliterations)

  • English16%

    Alternative form of RATO (“rocket-assisted takeoff”).

    as a wordkaikki.org Wiktionary extract (IPA + transliterations)

  • French12%

    No dictionary in our sources glosses Rato in French.

  • Indonesian5.1%

    No dictionary in our sources glosses Rato in Indonesian.

The share is ours — how much of this name’s records each language holds. The sense beside it is the source’s, quoted and credited, including where it names a gender. We do not publish a gender of our own per language: our records carry one figure for the spelling as a whole.

Where in the world(measured from records)

Rato 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 Rato is recorded, by country
CountryMost common spellingSources
ZA South Africa≈650 est.≈1 in 87K—Rato5
US United States173as Rutu1 in 1.9M206Rutu83
LY Libya≈120 est.≈1 in 56K—Rato1
BD Bangladesh≈96 est.≈1 in 1.7M—Rata8
BR Brazil≈84 est.≈1 in 2.5M400——
HR Croatia161 in 264K61—13
NZ New Zealand≈8 est.≈1 in 609K10Rutu5
FI Finland≈6 est.≈1 in 926K40——

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 — First Name Frequency 2020 by sex; Census Bureau — Surname Frequency 2020; DZS — Imena i prezimena (per-token lookup form); DVV — Nimipalvelu (Finnish name service, per-name lookup); DIA — Baby name popularity (1900–present). 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)

Rato is also recorded as 2 other names, grouped separately because the records behind them do not connect to the one described above.

  • English surname11 spellings in the group

    Most recorded in Philippines, United States, United Kingdom, Portugal

    Languages: English, German, Dutch

    Also written Raeto, Räto, Ratō

  • a separate name2 spellings in the group

    Also written Räto

44 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)

Rato 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 Latin, dative/ablative masculine/neuter singular of ratus

    as a wordkaikki.org Wiktionary extract (IPA + transliterations)

  • In mnb, arrive, come; reach, arrive at something

    as a wordAustronesian Comparative Dictionary (ACD), CLDF v2.0

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)

18501900195020002050José Moreira Rato, b. 1860Rodrigo Rato, b. 1949Rafael Rato, b. 1983Rita Rato, b. 1983Oliver Rato Paloio, b. 1985Bruno Rato, b. 1986Mattia Rato, b. 2005

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).

Evidence(measured from records)

Attested in 19 sources across 13 countries.

Official registers attesting Rato
CountryRegisterYearCountRank
BR BrazilIBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname)—400#20,732
US United Stateswru Name Dictionary — US surnames, voter-file supplement (Khanna et al.)———

Reference works 2

  • Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
  • 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 Rato mean, and where does it come from?
mouse Recorded by A Frequency Dictionary of Portuguese.
In which country does Rato have the most bearers?
Mondonomo estimates about 646 people named Rato in South Africa, more than in any other country we hold, where it is most often spelled rato.
How common is the name Rato?
In Croatia, the national register counted 16 people named Rato in 2021, about 1 in 264 thousand residents.

What do you want to know about Rato?

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/rato

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, “Rato”. Data snapshot 2026-10-10.

See how Rato parses inside a full name →