Úi

given name · Latin script

Meaning: An expression of surprise (kaikki.org Wiktionary extract (IPA + transliterations))

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

Úi is a male given name written in the Latin script, with more bearers in the United States than in any other country: 212 people, counted by the Census Bureau in 2020.

  • FIFinland1 in 1.1M(measured from records)
  • USUnited States1 in 1.6M
  • CRCosta Rica1 in 5.1M

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.

United States (measured from records)

212 people, 2020

Record sources
12 (measured from records)

corpus datasets behind its best-documented spelling

strongest: highest-authority source

1 in 1.1M (inferred from the name graph)

Finland

measured from records inferred from the name graph

Name dossier (print, CSV)Make your nomograph ✦

Spellings & scripts

(measured from records)

One other spelling is counted as the same name:

Locally spelled Ui in US United States, IN India, GB United Kingdom.

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)

An expression of surprise

Cited for this meaning 1

  • kaikki.org Wiktionary extract (IPA + transliterations)

Attested across 10 languages in the etymology graph.

Where in the world

(measured from records)

Úi 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 Úi is recorded, by country
CountryMost common spellingSources
US United States2121 in 1.6M115Ui12
FI Finland51 in 1.1M15—1
SE Sweden21 in 5.1M2——
CR Costa Rica11 in 5.1M1——
IN India———Ui4
GB United Kingdom———Ui4

212 people counted by Census Bureau — First Name Frequency 2020 by sex, 2020. 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 — First Name Frequency 2020 by sex; DVV — Etunimitilasto (Finnish given names register); DVV — Nimipalvelu (Finnish name service, per-name lookup); Skatteverket — Sök hur många som har ett visst namn (living population); TSE — electoral roll (padrón) names. 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)

Úi is also recorded as another name, grouped separately because the records behind them do not connect to the one described above.

  • Hebrew given name4 spellings in the group

    Most recorded in Israel, Romania, Lebanon

    Also written אוי, Ui, Oy

1 further group 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)

Úi is also recorded in one other lexicon, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.

  • In ntp, obsolete spelling of úúyi

    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)
1400160018002000Wu Wei, b. 1459Du Wei, b. 1962Jon M. Chu, b. 1979
  • Wu Weib. 1459CNnot in their usual nameChinese painter (1459-1508)
  • Du Weib. 1962CNnot in their usual nameAmbassador of China to Israel, Ambassador of China to Ukraine
  • Jon M. Chub. 1979USnot in their usual nameAmerican filmmaker

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 Úi 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

What does the name Úi mean, and where does it come from?
An expression of surprise Recorded by kaikki.org Wiktionary extract (IPA + transliterations).
Is Úi a male or female name?
Úi 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.
Which countries have the most people named Úi?
In the United States, the national register counted about 212 people named Úi, more than in any other country we hold, where it is most often spelled ui. After it come Finland, Sweden and Costa Rica; the country table on this page ranks them.
Where is Úi most common?
Measured as a share of residents rather than as a count, Úi is densest in Finland — about 1 in 1.1 million people — even though United States holds more of our records for it.
How common is the name Úi?
In the United States, the national register counted 212 people named Úi in 2020, about 1 in 1.6 million residents.

What do you want to know about Úi?

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/%C3%BAi

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, “Úi” — ranked 37052nd in the United States (Census Bureau, 2020). Data snapshot 2026-10-13.

See how Úi parses inside a full name →