Leleux
surname · Latin script
Meaning: nickname for a crafty or dangerous person, from Old French lou, leu ‘wolf’ (Latin lupus)
Recorded for both men and women· direction only, no split published
/llø/(machine-generated) pronunciation, model-generated
Leleux is a surname written in the Latin script, with more bearers in Belgium than in any other country.
- USUnited States1 in 488K(measured from records)
- BEBelgium1 in 12K
- CHSwitzerland1 in 2.1M
carrying the name, as counted by each country's national register. One hue, darker where it is more common; hover a country for its figure.
- Belgium (measured from records)
- Sources
- 149 (measured from records)
- 1 in 12K (inferred from the name graph)
973 people, 2008
Highest-authority source
Belgium
measured from records inferred from the name graph
Meaning & origin(measured from records)
nickname for a crafty or dangerous person, from Old French lou, leu ‘wolf’ (Latin lupus).
Sources 1
- Dictionary of American Family Names
Attested in 1 language in the etymology graph.
Where in the world(measured from records)
Leleux 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 | |||
|---|---|---|---|---|---|
| BE Belgium | 973 | 1 in 12K | 973 | Leleux | 16 |
| US United States | 681 | 1 in 488K | 689 | Leleux | 149 |
| ES Spain | 8 | 1 in 6.3M | 8 | — | 1 |
| CH Switzerland | 4 | 1 in 2.1M | 4 | — | 3 |
| DZ Algeria | — | — | — | Leleux | 1 |
973 people counted by Familienaam.be — Belgian family-name frequency (population register), 2008. 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 2000; Familienaam.be — Belgian family-name frequency (population register); INE — Padrón per-token widgets (current living counts, given + apellidos); 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).
Notable people with this name(measured from records)
- Adolphe Pierre Leleuxb. 1812FRFrench painter (1812-1891)
- Armand Leleuxb. 1818FRFrench painter (1818-1885)
- Louise-Émilie Leleux-Giraudb. 1824CHSwiss painter (1824-1885)
- Grégoire Leleuxb. 1910FRFrench politician
- Maurice Leleuxb. 1910FRFrench bicycle racer (1910–1989)
- Jean-Pierre Leleuxb. 1947FRFrench politician
- François Leleuxb. 1971FRFrench oboist, conductor, and professor
- Marc Leleuxb. 1973French historian
- Anaïs Leleuxb. 1987FRFrench feminist
- Laurent LeleuxFRFrench 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)
Evidence(measured from records)
Attested in 13 sources across 6 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| BE Belgium | Familienaam.be — Belgian family-name frequency (population register) | 2008 | 973 | #1,399 |
| BE Belgium | Statbel — Noms de famille (family names) | — | 863 | #1,582 |
| US United States | Census Bureau — Surname Frequency 2000 | 2000 | 689 | #31,704 |
| US United States | Census Bureau — Surname Frequency 2010 | 2010 | 681 | #33,499 |
| US United States | Census Bureau — Surname Frequency 2020 | 2020 | 665 | #36,244 |
| ES Spain | INE — Padrón per-token widgets (current living counts, given + apellidos) | — | 8 | #134,434 |
| CH Switzerland | BFS — Familiennamen der Wohnbevölkerung (surnames) | 2024 | 4 | #118,617 |
| US United States | wru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.) | — | — | — |
Reference works 3
- Dictionary of American Family Names
- 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 Leleux mean, and where does it come from?
- nickname for a crafty or dangerous person, from Old French lou, leu ‘wolf’ (Latin lupus). Recorded by Dictionary of American Family Names.
- How do you pronounce Leleux?
- A machine transcription gives /llø/ (IPA) for French.
- In which country does Leleux have the most bearers?
- In Belgium, the national register counted about 973 people named Leleux, more than in any other country we hold, where it is most often spelled leleux.
- Where is Leleux most common?
- Leleux is densest in Belgium, where the national register counts about 1 in 12 thousand people carrying it.
- How common is the name Leleux?
- In Belgium, the national register counted 973 people named Leleux in 2008, about 1 in 12 thousand residents.
What do you want to know about Leleux?
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/leleuxThe 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, “Leleux”. Data snapshot 2026-10-10.