Lesieur

surname · Latin script

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

Lesieur is a surname written in the Latin script, most frequently recorded in France. Recorded meaning: from Old French sieur ‘lord’ (Latin senior ‘elder’).

rarermore common
  • FRFrance
  • USUnited States
  • CACanada

Where the name is found, darker where our sources hold more of it. No national register counts its bearers anywhere we hold data, so the map carries no figures. One hue, darker where it is more common; hover a country for its figure.

Meaning & origin(measured from records)

from Old French sieur ‘lord’ (Latin senior ‘elder’). This was either an occupational name for someone in the service of a great lord or a derisive nickname for a person who gave himself airs and graces.

Sources 1

  • Dictionary of American Family Names

Where in the world(measured from records)

Recorded in:

No national register we accept counts this name’s bearers, so the page lists where it is found and publishes no figure.

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)

Lesieur 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, de le sieur, surnom ironique

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

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)

18001850190019502000Louis-Léon Lesieur Desaulniers, b. 1823Émile Lesieur, b. 1885Jean Lesieur, b. 1904Pierre Le Sueur, b. 1922Edmond Mulet, b. 1951Thierry Lesieur, b. 1957Jennifer Lesieur, b. 1978

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).

Evidence(measured from records)

Attested in 14 sources across 6 countries.

Reference works 4

  • Dictionary of American Family Names
  • 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 Lesieur mean, and where does it come from?
from Old French sieur ‘lord’ (Latin senior ‘elder’). Recorded by Dictionary of American Family Names.
In which country does Lesieur have the most bearers?
Lesieur is most frequently recorded in France.

What do you want to know about Lesieur?

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Query this name via API
curl https://api.mondonomo.ai/api/v1/name-graph/lesieur

The same payload this page is built from: spellings and scripts, countries and languages, related names, and the registers that attest the form. Rate-limited for casual use; a free API key gives 1,000 requests a day, and bulk access is licensed separately.

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

See how Lesieur parses inside a full name →