Ruì

given name · Latin script

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

Ruì is a given name written in the Latin script, with more bearers in Brazil than in any other country.

rarermore common
  • USUnited States1 in 47K(measured from records)
  • BRBrazil1 in 7.2K
  • ISIceland1 in 11K

carrying the name, as counted by each country's national register. One hue, darker where it is more common; hover a country for its figure.

Brazil (measured from records)

29,481 people, 2022

Sources
208 (measured from records)

Highest-authority source

1 in 7.2K (inferred from the name graph)

Brazil

measured from records inferred from the name graph

Name dossier (print, CSV)

Spellings & scripts(measured from records)

One other spelling is counted as the same name:

Locally spelled Rui in US United States, PT Portugal, ES Spain and 3 more.

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)

recorded in Portuguese

do latim arrugia; indica morador junto a arroio, rio ou córrego

Sources 5

  • Diccionario etimológico de nombres propios
  • Dicionário dos sobrenomes italianos
  • Wiktionary
  • Nordic Names
  • Schuessler, ABC Etymological Dictionary of Old Chinese (2007)

Attested across 28 languages in the etymology graph.

Where in the world(measured from records)

Ruì 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 Ruì is recorded, by country
CountryMost common spellingSources
BR Brazil—29,4811 in 7.2K38K—7
US United States—7,0361 in 47K4.1KRui208
ES Spain—4491 in 111K449Rui36
SE Sweden—3921 in 26K392Rui11
PL Poland—1601 in 239K120—3
DK Denmark—1241 in 47K97Rui38
IS Iceland—331 in 11K33Rui7
PT Portugal#282——listedRui8

29,481 people counted by IBGE — names by decade (Kaggle mirror), 2022. 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 — names by decade (Kaggle mirror); IBGE — Nomes (census name API); Census Bureau — First Name Frequency 2020 by sex; INE — Padrón per-token widgets (current living counts, given + apellidos); Skatteverket — Sök hur många som har ett visst namn (living population); Danmarks Statistik — Hvor mange hedder...? (living-population name counts); dane.gov.pl — PESEL given names (first + second name position, 2026-01-20); Þjóðskrá Íslands — Name frequencies (NafnTíðni, registry). 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)

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

  • Arabic given name3 spellings in the group

    Most recorded in China, United States, United Arab Emirates, Egypt

    Languages: Arabic, Maltese

    Also written Rui

  • a separate name3 spellings in the group

    Also written Rúi, Rui

2 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.

Notable people with this name(measured from records)

1400160018002000Hai Rui, b. 1514Li Rui, b. 1768Li Rui, b. 1917Huang Rui, b. 1952Liu Rui, b. 1982Ray Chen, b. 1989Liang Rui, b. 1994Wang Rui, b. 1995Sun Rui, b. 1995
  • Hai Ruib. 1514CNChinese politician (1514-1587)
  • Li Ruib. 1768CNChinese mathematician (1768-1817)
  • Li Ruib. 1917CNChinese politician (1917–2019)
  • Huang Ruib. 1952CNartist
  • Liu Ruib. 1982CNChinese curler and curling coach
  • Ray Chenb. 1989AUnot in their usual nameTaiwanese-Australian violinist
  • Liang Ruib. 1994CNChinese racewalker
  • Wang Ruib. 1995CNChinese female curler
  • Sun Ruib. 1995CNChinese idol singer and actress
  • Wu Rui3rd century BC Chinese general who helped Liu Bang establish the Han dynasty

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)

No register attests this spelling yet

None of the official registers or reference works in our corpus lists Ruì under this spelling. The statistics on this page rest on person records, and the related names are inferred from the name graph.

Frequently asked questions

Is Ruì a male or female name?
Ruì is a male name in our records. Opposite-gender entries fall within the cross-gender noise we measure in the source data, so we don't report them as usage.
In which country does Ruì have the most bearers?
In Brazil, the national register counted about 29 thousand people named Ruì, more than in any other country we hold.
Where is Ruì most common?
Ruì is densest in Brazil, where the national register counts about 1 in 7.2 thousand people carrying it.
How common is the name Ruì?
In Brazil, the national register counted 29,481 people named Ruì in 2022, about 1 in 7.2 thousand residents.
How common is Ruì compared with other names?
In Portugal, Ruì is the 282nd most common given name of 19,352 given names recorded there.

What do you want to know about Ruì?

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

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/ru%C3%AC

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, “Ruì” — the 282nd most common given name in Portugal. Data snapshot 2026-10-10.

See how Ruì parses inside a full name →