Jean-Guillaume
given name · Latin script
Recorded as a male name· opposite-gender records fall within measured source noise
/ʒəangijom/(machine-generated) pronunciation, model-generated
Jean-Guillaume is a given name written in the Latin script, with more bearers in France than in any other country.
- FRFrance≈1 in 115K(inferred from the name graph)
- BEBelgium≈1 in 401K
- CHSwitzerland≈1 in 425K
carrying the name, as Mondonomo estimates it from our sources: no national register counts it in these countries. One hue, darker where it is more common; hover a country for its figure.
- France (inferred from the name graph)
- Sources
- 169 (measured from records)
- ≈1 in 115K (inferred from the name graph)
≈590 people, est.
Highest-authority source
France, est.
measured from records inferred from the name graph
Spellings & scripts(measured from records)
One other spelling is counted as the same name:
Locally spelled Jeanguillaume in US United States.
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
No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.
Where in the world(measured from records)
Jean-Guillaume 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.
| Country | Most common spelling | Sources | |||
|---|---|---|---|---|---|
| FR France | ≈590 est. | ≈1 in 115K | 835 | Jean-Guillaume | 169 |
| BE Belgium | ≈29 est. | ≈1 in 401K | — | Jean-Guillaume | 14 |
| CA Canada | ≈22 est. | ≈1 in 1.7M | — | Jean-Guillaume | 20 |
| CH Switzerland | ≈20 est. | ≈1 in 425K | — | Jean-Guillaume | 15 |
| US United States | ≈7 est. | ≈1 in 48M | listed | Jeanguillaume | 29 |
| EE Estonia | ≈2 est. | ≈1 in 705K | listed | — | 1 |
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: INSEE — Fichier des prénoms (1900–2024); the ee-siseministeerium-registry register. 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).
Notable people with this name(measured from records)
- Jean-Guillaume Molinierb. 1733FRnot in their usual nameRoman Catholic bishop
- Jean Guillaume Bruguièreb. 1750FRnot in their usual nameFrench zoologist (1750-1798)
- Jean-Guillaume Henryb. 1803FRnot in their usual nameFrench catholic priest and writer (1803-1880)
- Julien-Jean-Guillaume Conanb. 1860not in their usual nameroman-catholic archbishop (1860-1944)
- Jean-Guillaume Lanuqueb. 1950not in their usual nameFrench historian
- Jean-Guillaume Lebrunb. 1974FRnot in their usual nameFrench journalist
- Jean-Guillaume Dumasb. 1975FRnot in their usual namePh.D. Institut National Polytechnique de Grenoble 2000
- Jean-Guillaume Decorseb. 1975FRnot in their usual nameFrench politician
- Jean-Guillaume Remiseb. 1978FRnot in their usual nameFrench politician
- Jean-Guillaume Kleisb. 1988FRnot in their usual nameFrench businessperson
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)
A formal English salutation is built on the surname, so it needs a full name — on its own, a first name only supports the informal form.
Evidence(measured from records)
Attested in 5 sources across 3 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| FR France | INSEE — Fichier des prénoms (1900–2024) | 2000 | 835 | #1,739 |
| EE Estonia | Siseministeerium — population register name list 2023 | 2023 | — | — |
Reference works 2
- Wikipedia given-name tokens
- 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
- How do you pronounce Jean-Guillaume?
- A machine transcription gives /ʒəangijom/ (IPA) for French.
- Is Jean-Guillaume a male or female name?
- Jean-Guillaume 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 Jean-Guillaume have the most bearers?
- Mondonomo estimates about 588 people named Jean-Guillaume in France, more than in any other country we hold, where it is most often spelled jean-guillaume.
- How common is the name Jean-Guillaume?
- Mondonomo estimates about 590 people in France have Jean-Guillaume as their first given name, about 1 in 115 thousand residents. No national register counts it there; the figure is ours, calibrated against the registers that do.
What do you want to know about Jean-Guillaume?
Nobody replies to these one by one, but what readers ask decides what these pages answer next.
Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/jean-guillaumeThe 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, “Jean-Guillaume”. Data snapshot 2026-10-10.