Lejeune

surname · Latin script

Meaning, in French: variant of Jeune (‘young’), with the definite article le. This name was also taken to Germany by Huguenot refugees. It is often translated as Young

Recorded for both men and women· direction only, no split published

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

Lejeune is a surname written in the Latin script, with more bearers in China than in any other country. In Belgium it is the 18th most common surname.

rarermore common
  • BEBelgium1 in 1.8K(measured from records)
  • FRFrance≈1 in 4.4K
  • USUnited States1 in 60K

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.

China (inferred from the name graph)

≈20,000 people, est.

Sources
285 (measured from records)

Highest-authority source

≈1 in 1.1K (inferred from the name graph)

Guinea, est.

measured from records inferred from the name graph

Meaning & origin(measured from records)

The young; originally used to distinguish the younger of two people with the same name.

Sources 1

  • Encyclopedia of surnames [the complete companion to tracing your names history]

Attested in 1 language in the etymology graph.

How Lejeune is read(measured from records)

Lejeune is one spelling over 2 language communities, and the dictionaries record it differently in 2 of them. Each row is what a source recorded for that language, beside the share of this name’s records the language holds. No single row is the name’s meaning.

  • French62%

    variant of Jeune (‘young’), with the definite article le. This name was also taken to Germany by Huguenot refugees. It is often translated as Young.

    as a nameDictionary of American Family Names

    de le jeune, surnom pour distinguer le fils du père ou le plus jeune des frères

    as a nameDictionnaire des noms de famille du Canada français. Anthroponymie et généalogie. 2e édition

  • English31%

    The young; originally used to distinguish the younger of two people with the same name.

    as a nameEncyclopedia of surnames [the complete companion to tracing your names history]

The share is ours — how much of this name’s records each language holds. The sense beside it is the source’s, quoted and credited, including where it names a gender. We do not publish a gender of our own per language: our records carry one figure for the spelling as a whole.

Where in the world(measured from records)

Lejeune 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 Lejeune is recorded, by country
CountryMost common spellingSources
CN China—≈20,000 est.≈1 in 69K—Lejeune5
FR France#191≈16,000 est.≈1 in 4.4K2KLejeune285
GN Guinea#91≈11,000 est.≈1 in 1.1K—Lejeune1
BE Belgium#186,5641 in 1.8K6.6KLejeune117
US United States—5,5441 in 60K5.5KLejeune207
NL Netherlands—3151 in 55K315Lejeune27

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 noms de famille (1891–2000); Familienaam.be — Belgian family-name frequency (population register); Census Bureau — Surname Frequency 2010; CBG Familienamenbank — Dutch surname bearer counts (GBA/BRP 2007). 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)

Lejeune is also recorded as 2 other names, grouped separately because the records behind them do not connect to the one described above.

  • English surname7 spellings in the group

    Most recorded in United States, United Kingdom, Australia, Belgium

    Languages: English, Dutch

    Also written Le-Jeune, Léjeune

  • German surname3 spellings in the group

    Most recorded in Germany, United States, Belgium, Switzerland

    Also written Le Jeune

53 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.

Notable people with this name(measured from records)

1700180019002000Louis-François, Baron Lejeune, b. 1775Paul Lejeune-Jung, b. 1882Colette Vivier, b. 1898Rita Lejeune, b. 1906Jérôme Lejeune, b. 1926André Lejeune, b. 1935Philippe Lejeune, b. 1938Olivier Lejeune, b. 1951Clara Gaymard, b. 1960Florian Lejeune, b. 1991

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)

FormalMadame, Monsieur,Dear Lejeune, (English)
InformalMadame, Monsieur,Hello, (English)

Evidence(measured from records)

Attested in 28 sources across 13 countries.

Reference works 7

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

Where does the name Lejeune come from?
The young; originally used to distinguish the younger of two people with the same name. Recorded by Encyclopedia of surnames [the complete companion to tracing your names history].
How do you pronounce Lejeune?
A machine transcription gives /ləʒœn/ (IPA) for French.
What does the name Lejeune mean?
In French, variant of Jeune (‘young’), with the definite article le. This name was also taken to Germany by Huguenot refugees. It is often translated as Young.
In which country does Lejeune have the most bearers?
Mondonomo estimates about 20 thousand people named Lejeune in China, more than in any other country we hold, where it is most often spelled lejeune.
How common is the name Lejeune?
In Belgium, the national register counted 6,564 people named Lejeune in 2008, about 1 in 1.8 thousand residents.
How common is Lejeune compared with other names?
In Belgium, Lejeune is the 18th most common surname of 246,397 surnames recorded there.

What do you want to know about Lejeune?

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/lejeune

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, “Lejeune” — the 18th most common surname in Belgium. Data snapshot 2026-10-10.

See how Lejeune parses inside a full name →