Leonce

given name · Latin script

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

Leonce is a given name written in the Latin script, with more bearers in Tanzania than in any other country. Recorded meaning: Du latin Leontius, de leôn «lion»; saint Léonce.

rarermore common
  • BIBurundi≈1 in 4.1K(inferred from the name graph)
  • CGCongo - Brazzaville≈1 in 11K
  • CMCameroon≈1 in 12K

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.

Tanzania (inferred from the name graph)

≈4,900 people, est.

Sources
161 (measured from records)

Highest-authority source

≈1 in 4.1K (inferred from the name graph)

Burundi, est.

measured from records inferred from the name graph

Name dossier (print, CSV)

Spellings & scripts(measured from records)

One other spelling is counted as the same name:

Locally spelled Léonce in CG Congo - Brazzaville.

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(measured from records)

recorded in French

Du latin Leontius, de leôn «lion»; saint Léonce.

Sources 1

  • Dictionnaire généalogique des prénoms

Attested across 19 languages in the etymology graph.

Where in the world(measured from records)

Leonce 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 Leonce is recorded, by country
CountryMost common spellingSources
TZ Tanzania—≈4,900 est.≈1 in 12K1Leonce7
BI Burundi—≈2,900 est.≈1 in 4.1K1—3
CM Cameroon#662≈2,400 est.≈1 in 12K—Leonce9
CD Congo - Kinshasa#893≈2,100 est.≈1 in 49K1Leonce4
CI Côte d’Ivoire—≈1,900 est.≈1 in 15K—Leonce9
CG Congo - Brazzaville#262≈480 est.≈1 in 11K—Léonce2
US United States—3191 in 1M308Leonce46

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 — First Name Frequency 2020 by sex; Wikidata humans by citizenship — given & family names; INEC Special Gazette 2021 — 2020 parliamentary election results; CENI — Liste nominative definitive des candidats deputes 2025. 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)

Leonce is also recorded as 5 other names, grouped separately because the records behind them do not connect to the one described above.

  • English given name4 spellings in the group

    Most recorded in United States, Canada, United Kingdom, Tanzania

    Also written Léonce, Lèonce

  • French (Côte d’Ivoire) given name2 spellings in the group

    Most recorded in Côte d’Ivoire

    Also written Léonce

  • Swahili given name7 spellings in the group

    Most recorded in Tanzania, United States, Congo - Kinshasa, Cameroon

    Languages: Swahili, Kinyarwanda

    Also written Léonce, Lèonce

  • Portuguese given name3 spellings in the group

    Most recorded in Brazil, United States, Tanzania, United Kingdom

    Also written Léonce, Lèonce

  • a separate name2 spellings in the group

    Also written Léonce

47 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)

17501800185019001950Jean Baptiste Armand Louis Léonée Elie de Beaumont, b. 1798Ghevont Alishan, b. 1820Léonce Cohen, b. 1829Léonce Verny, b. 1837Léonce Bénédite, b. 1859Léonce Rosenberg, b. 1879Léonce Perret, b. 1880Léonce-Henri Burel, b. 1892Charles Coste, b. 1924Érik Orsenna, b. 1947

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 32 sources across 18 countries.

Official registers attesting Leonce
CountryRegisterYearCountRank
US United StatesCensus Bureau — First Name Frequency 2020 by sex2020308#28,260
US United StatesCensus Bureau — First Name Frequency 2020 by sex202011#28,260
US United StatesSSA — National Baby Names (1880–present)20085—
BI BurundiCENI — Liste nominative definitive des candidats deputes 202520251#16
TZ TanzaniaINEC Special Gazette 2021 — 2020 parliamentary election results20201#29
CD Congo - KinshasaWGND 2.0 — DR Congo given names———

Reference works 3

  • Dictionary of American Family Names
  • 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

What does the name Leonce mean?
Recorded meaning: Du latin Leontius, de leôn «lion»; saint Léonce.
Is Leonce a male or female name?
Leonce 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 Leonce have the most bearers?
Mondonomo estimates about 4.9 thousand people named Leonce in Tanzania, more than in any other country we hold, where it is most often spelled leonce.
How common is the name Leonce?
In the United States, the national register counted 319 people named Leonce in 2020, about 1 in 1.0 million residents.
How common is Leonce compared with other names?
In Congo - Brazzaville, Leonce is the 262nd most common given name of 363 given names recorded there.

What do you want to know about Leonce?

Nobody replies to these one by one, but what readers ask decides what these pages answer next.

Please leave out anyone's personal details (see Privacy).

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

The same 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), 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, “Leonce” — the 262nd most common given name in Congo - Brazzaville. Data snapshot 2026-10-10.

See how Leonce parses inside a full name →