Mongeau

surname · Latin script

Meaning: même origine que Mongeon

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

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

Mongeau is a surname written in the Latin script, with more bearers in the United States than in any other country.

rarermore common
  • USUnited States1 in 323K(measured from records)
  • UYUruguay1 in 66Kas Monjo
  • ESSpain1 in 89Kas Monjo

carrying the name, as counted by each country's national register. Where a country counts another spelling of the name rather than Mongeau 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.

United States (measured from records)

1,029 people, 2010

2 (measured from records)

recorded for this name

Sources
6 (measured from records)

Reference-verified

1 in 323K (inferred from the name graph)

United States

measured from records inferred from the name graph

Spellings & scripts(measured from records)

MongeauLatin(measured from records)
МонжоCyrillic(measured from records)

One other spelling is counted as the same name:

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)

même origine que Mongeon

Sources 1

  • Dictionnaire des noms de famille du Canada français. Anthroponymie et généalogie. 2e édition

Where in the world(measured from records)

Mongeau 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 Mongeau is recorded, by country
CountryMost common spellingSources
US United States1,0291 in 323K1KMongeau6
ES Spain564as Monjo1 in 89K564—3
AR Argentina351as Monjo1 in 130K351——
UY Uruguay51as Monjo1 in 66K51——
CZ Czechia1as Monjo1 in 11M1——

1,029 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; INE — Padrón per-token widgets (current living counts, given + apellidos); INE — Apellidos más frecuentes (Padrón Municipal); RENAPER — Apellidos (person counts, national); INE Uruguay — Apellidos más frecuentes 1902–2024 (Tableau Public); MVČR — living population register 2017. 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 recorded senses(measured from records)

Mongeau 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 French, from a pet form of Monge 1.

    as a nameDictionary of American Family Names

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)

19201940196019802000Serge Mongeau, b. 1937Monique Mongeau, b. 1940Daniel Mongeau, b. 1942Michel Mongeau, b. 1953François Mongeau, b. 1958Diane Mongeau, b. 1960France Mongeau, b. 1961Michel Mongeau, b. 1965Tana Mongeau, b. 1998Lyne Mongeau, b. 2000

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).

How to address them(machine-generated)

FormalDear Mongeau,
InformalHello,

Evidence(measured from records)

Attested in 6 sources across 1 country.

Official registers attesting Mongeau
CountryRegisterYearCountRank
US United StatesCensus Bureau — Surname Frequency 201020101K#24,352
US United StatesCensus Bureau — Surname Frequency 20002000980#24,023
US United StatesCensus Bureau — Surname Frequency 20202020878#28,830
US United Stateswru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.)———

Reference works 2

  • Dictionary of American Family Names
  • 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 Mongeau mean, and where does it come from?
même origine que Mongeon Recorded by Dictionnaire des noms de famille du Canada français. Anthroponymie et généalogie. 2e édition.
How do you pronounce Mongeau?
A machine transcription gives /məŋˈɡoʊ/ (IPA) for English.
In which country does Mongeau have the most bearers?
In the United States, the national register counted about 1.0 thousand people named Mongeau, more than in any other country we hold, where it is most often spelled mongeau.
Where is Mongeau most common?
Mongeau is densest in the United States, where the national register counts about 1 in 323 thousand people carrying it.
How common is the name Mongeau?
In the United States, the national register counted 1,029 people named Mongeau in 2010, about 1 in 323 thousand residents.

What do you want to know about Mongeau?

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/mongeau

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, “Mongeau”. Data snapshot 2026-10-10.

See how Mongeau parses inside a full name →