Guillaume
given name · Latin script
Meaning: French form of Germanic Wilhelm, from wil “will, desire” + helm “helmet, protection”
Recorded as a male name· opposite-gender records fall within measured source noise
/gijom/(machine-generated) pronunciation, model-generated
Guillaume is a given name written in the Latin script, with more bearers in France than in any other country, where it is the 39th most common given name.
- FRFrance≈1 in 331(inferred from the name graph)
- BEBelgium≈1 in 1.1K
- CHSwitzerland≈1 in 2K
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)
- Sources
- 466 (measured from records)
- ≈1 in 331 (inferred from the name graph)
≈200,000 people, est.
Highest-authority source
France, est.
measured from records inferred from the name graph
Meaning & origin(measured from records)
French form of Germanic Wilhelm, from wil “will, desire” + helm “helmet, protection”.
Sources 1
- Le grand guide des prénoms (Enfant - Education)
Attested across 14 languages in the etymology graph.
Where in the world(measured from records)
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 | #39 | ≈200,000 est. | ≈1 in 331 | 223K | Guillaume | 466 |
| BE Belgium | #101 | ≈11,000 est. | ≈1 in 1.1K | 4.1K | Guillaume | 157 |
| CM Cameroon | #288 | ≈8,300 est. | ≈1 in 3.4K | — | Guillaume | 29 |
| CA Canada | #717 | ≈6,500 est. | ≈1 in 5.8K | 1 | Guillaume | 232 |
| CH Switzerland | #294 | ≈4,300 est. | ≈1 in 2K | 486 | Guillaume | 131 |
| US United States | — | 1,451 | 1 in 229K | 3.6K | Guillaume | 292 |
| AD Andorra | #653 | ≈45 est. | ≈1 in 1.7K | — | Guillaume | 8 |
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); Familienaam.be — Belgian family-name frequency (population register); Alberta Open Government — Frequency and Ranking of Baby Names by Year and Gender; Census Bureau — First Name Frequency 2020 by sex; Census Bureau — Surname Frequency 2020; BFS — Familiennamen der Wohnbevölkerung (surnames). 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)
Guillaume is also recorded in 5 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.
In French, from Germanic *wilja- 'will' + *helm- 'helmet, protection'
as a nameDeutsche Namenkunde: Unsere Familiennamen nach ihrer Entstehung und Bedeutung
In French, From Germanic wil + helm, 'will' + 'helmet'; St William.
as a nameDictionnaire généalogique des prénoms
In French, From Germanic Wilhelm, 'will' + 'helmet/protection'.
as a nameLe grand guide des prénoms (Enfant - Education)
In French, from the personal name Guillaume, French form of William.
as a nameDictionary of American Family Names
Germanic. See } William in main dictionary.
as a nameA concise dictionary of first 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)
- Guillaume le Lionb. 1143GBKing of Alba from 1165 to 1214
- Urban Vb. 1310FRnot in their usual namepope of the Catholic Church from 1362 to 1370
- Guillaume Delisleb. 1675FRFrench cartographer (1675-1726)
- André Gideb. 1869FRnot in their usual nameFrench author and Nobel laureate (1869–1951)
- Guillaume Apollinaireb. 1880FRFrench poet (1880–1918)
- Jean, Grand Duke of Luxembourgb. 1921LUnot in their usual nameMonarch of Luxembourg (1964-2000)
- Henri I, Grand Duke of Luxembourgb. 1955LUnot in their usual nameGrand Duke (head of state) of the Grand Duchy of Luxembourg (2000–2025)
- Jean-Pierre Papinb. 1963FRnot in their usual nameFrench football manager
- Albert Dupontelb. 1964FRnot in their usual nameFrench actor, comedian, film director and screenwriter
- Guillaume Sorob. 1972CIIvorian politician
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 89 sources across 48 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| FR France | INSEE — Fichier des prénoms (1900–2024) | 2024 | 223K | #657 |
| US United States | Census Bureau — First Name Frequency 2020 by sex | 2020 | 1.4K | #9,532 |
| FR France | INSEE — Fichier des prénoms (1900–2024) | 1931 | 10 | #620 |
| CA Canada | Statistics Canada — First names at birth by sex at birth (Table 17-10-0147-01) | 2024 | 8 | — |
| US United States | Census Bureau — First Name Frequency 2020 by sex | 2020 | 8 | #9,532 |
| US United States | SSA — National Baby Names (1880–present) | 2024 | 6 | — |
| CA Canada | Alberta Open Government — Frequency and Ranking of Baby Names by Year and Gender | 2022 | 1 | #2,090 |
Reference works 8
- Dictionary of American Family Names
- The Oxford Dictionary of Family Names in Britain and Ireland
- Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
- Nişanyan Adlar (Turkish given-name national-registry frequency)
- Wikipedia given-name tokens
- Wikipedia surname tokens
- Wikidata name items (native-script + romanized given/family names)
- jeantosti.com — Dictionnaire des noms de famille de France et d'ailleurs (Jean Tosti)
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 Guillaume mean, and where does it come from?
- French form of Germanic Wilhelm, from wil “will, desire” + helm “helmet, protection”. Recorded by Le grand guide des prénoms (Enfant - Education).
- Is Guillaume a male or female name?
- 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.
- How do you pronounce Guillaume?
- A machine transcription gives /gijom/ (IPA) for French.
- In which country does Guillaume have the most bearers?
- Mondonomo estimates about 205 thousand people named Guillaume in France, more than in any other country we hold, where it is most often spelled guillaume.
- What are other forms of the name Guillaume?
- In the etymology graph, William, Guillermo and Willie are forms of the same name in other languages.
- How common is the name Guillaume?
- In the United States, the national register counted 1,451 people named Guillaume in 2020, about 1 in 229 thousand residents.
- How common is Guillaume compared with other names?
- In France, Guillaume is the 39th most common given name of 754,146 given names recorded there.
What do you want to know about 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/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, “Guillaume” — the 39th most common given name in France. Data snapshot 2026-10-10.