Ois

surname · Latin script

Meaning: inflection of ouïr:

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

/wa/(machine-generated) pronunciation, model-generated

Ois is a surname written in the Latin script, with more bearers in France than in any other country. In Belgium it is the 14th most common surname.

rarermore common
  • FRFrance≈1 in 386K(inferred from the name graph)
  • BEBelgium≈1 in 8.4M
  • UYUruguay1 in 28K

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.

France (inferred from the name graph)

≈180 people, est.

Sources
40 (measured from records)

Highest-authority source

1 in 28K (inferred from the name graph)

Uruguay

measured from records inferred from the name graph

Spellings & scripts(measured from records)

Locally spelled Õis in EE Estonia.

Meaning & origin(measured from records)

inflection of ouïr:

Sources 1

  • kaikki.org Wiktionary extract (IPA + transliterations)

Where in the world(measured from records)

Ois 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 Ois is recorded, by country
CountryMost common spellingSources
FR France—≈180 est.≈1 in 386K—Ois40
UY Uruguay—1191 in 28K119——
CA Canada—≈93 est.≈1 in 406K—Ois24
ES Spain—611 in 820K61Ois5
BR Brazil—321 in 6.6M32——
EE Estonia—≈11 est.≈1 in 117KlistedÕis3
BE Belgium#14≈1 est.≈1 in 8.4M—Ois10

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: INE Uruguay — Apellidos más frecuentes 1902–2024 (Tableau Public); 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). 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)

Ois is also recorded as 4 other names, grouped separately because the records behind them do not connect to the one described above.

  • Spanish surname9 spellings in the group

    Most recorded in Argentina, Uruguay, Spain, Brazil

    Languages: Spanish, Portuguese

    Also written Õis, Óis, Õîs, ̧ois

  • a separate name3 spellings in the group

    Also written ̧ois, Õis

  • Estonian surname5 spellings in the group

    Most recorded in Estonia, Canada, United States

    Also written Õis, Öis, ̧ois

  • Vietnamese surname2 spellings in the group

    Most recorded in Vietnam

    Also written Ơi'S

28 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)

Ois 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 Finnish, inflection of olla:

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

  • In bar, everything, all

    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.

How to address them(machine-generated)

FormalMonsieur,Dear Mr Ois, (English)
InformalBonjour Ois,Hi Ois, (English)

Evidence(measured from records)

Attested in 6 sources across 5 countries.

Register rows as of the 2026-10-09 data build.

Frequently asked questions

What does the name Ois mean, and where does it come from?
inflection of ouïr: Recorded by kaikki.org Wiktionary extract (IPA + transliterations).
What are other forms of the name Ois?
In the etymology graph, Uis is a form of the same name in other languages.
How do you pronounce Ois?
A machine transcription gives /wa/ (IPA) for French.
In which country does Ois have the most bearers?
Mondonomo estimates about 176 people named Ois in France, more than in any other country we hold, where it is most often spelled ois.
Where is Ois most common?
Measured as a share of residents rather than as a count, Ois is densest in Uruguay — about 1 in 28 thousand people — even though France holds more of our records for it.
How common is the name Ois?
In Uruguay, the national register counted 119 people named Ois, about 1 in 28 thousand residents.
How common is Ois compared with other names?
In Belgium, Ois is the 14th most common surname of 246,397 surnames recorded there.

What do you want to know about Ois?

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/ois

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, “Ois” — the 14th most common surname in Belgium. Data snapshot 2026-10-10.

See how Ois parses inside a full name →