Oü

org · Latin script

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

Oü is a name written in the Latin script, with more bearers in the United States than in any other country. Recorded meaning: Inherited from Latin ōvum (“egg”).

rarermore common
  • MAMorocco≈1 in 117K(inferred from the name graph)
  • EEEstonia≈1 in 58K
  • USUnited States1 in 79K

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.

United States (measured from records)

4,196 people, 2010

Sources
42 (measured from records)

Highest-authority source

≈1 in 58K (inferred from the name graph)

Estonia, est.

measured from records inferred from the name graph

Name dossier (print, CSV)

Spellings & scripts(measured from records)

2 other spellings are counted as the same name:

Locally spelled Ou in US United States, MA Morocco, DZ Algeria and 1 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)

Inherited from Latin ōvum (“egg”).

Sources 2

Attested across 21 languages in the etymology graph.

Where in the world(measured from records)

Oü 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 Oü is recorded, by country
CountryMost common spellingSources
US United States—4,1961 in 79K5.8KOu29
DZ Algeria#261≈370 est.≈1 in 116K—Ou19
MA Morocco#319≈300 est.≈1 in 117K—Ou42
ES Spain—2301 in 217K230Ou16
BR Brazil—2261 in 937K226——
DK Denmark—501 in 117K50——
EE Estonia—≈21 est.≈1 in 58Klisted—1

4,196 people counted by Census Bureau — Surname Frequency 2010, 2010. 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; Census Bureau — Surname Frequency 2020; INE — Padrón per-token widgets (current living counts, given + apellidos); INE — Apellidos más frecuentes (Padrón Municipal); IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); Danmarks Statistik — Hvor mange hedder...? (living-population name counts). 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)

Oü is also recorded as 7 other names, grouped separately because the records behind them do not connect to the one described above.

  • English surname60 spellings in the group

    Most recorded in United States, Australia, China, United Kingdom

    Languages: English, German

    Also written Ou, Oue, Oeu, O'U, Où

  • French surname55 spellings in the group

    Most recorded in France, Morocco, United States, China

    Also written Ou, Où, Oû, Ôù, 'Ou

  • Estonian surname23 spellings in the group

    Most recorded in Estonia, United States, Algeria, China

    Languages: Estonian, Finnish

    Also written Ou, Õů, Õù, Õú, Ôu

  • Spanish surname60 spellings in the group

    Most recorded in United States, Argentina, China, Brazil

    Languages: Spanish, Portuguese

    Also written Ou, Où, Öü, Ōu, Öû

  • Croatian surname17 spellings in the group

    Most recorded in China, United States

    Languages: Croatian, Bulgarian, Serbian

    Also written Ou, Öū, Où, Õu, Оў

  • Polish surname7 spellings in the group

    Most recorded in China, United States, United Kingdom, Poland

    Also written Ou, Ôu, Ŏu, Ōū, Óú

  • Czech surname8 spellings in the group

    Most recorded in Czechia, China, United States

    Also written Ou, Ôû, Öù, Où, Öū

6 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.

Evidence(measured from records)

No register attests this spelling yet

None of the official registers or reference works in our corpus lists Oü 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 Oü mean, and where does it come from?
Inherited from Latin ōvum (“egg”). Recorded by A Frequency Dictionary of Portuguese and Wiktionary.
In which country does Oü have the most bearers?
In the United States, the national register counted about 4.2 thousand people named Oü, more than in any other country we hold, where it is most often spelled ou.
How common is the name Oü?
In the United States, the national register counted 4,196 people named Oü in 2010, about 1 in 79 thousand residents.
How common is Oü compared with other names?
In Algeria, Oü is the 261st most common surname of 89,473 surnames recorded there.

What do you want to know about Oü?

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

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, “Oü” — the 261st most common surname in Algeria. Data snapshot 2026-10-10.

See how Oü parses inside a full name →