Lucas

given name · Latin script

Meaning, in French: From Latin lux, 'light'; variant of Luc. Saint/name-day not given on this page

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

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

Lucas is a given name written in the Latin script, with more bearers in Brazil than in any other country, where it is the 19th most common given name.

rarermore common
  • BRBrazil1 in 158(measured from records)
  • ARArgentina≈1 in 233
  • UYUruguay≈1 in 283

carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). Where a country counts another spelling of the name rather than Lucas itself, the figure is that spelling’s, and it is named. One hue, darker where it is more common; hover a country for its figure.

Brazil (measured from records)

1,341,525 people, 2022

#405 (measured from records)

of 15M given names

4 (measured from records)

recorded for this name

Sources
410 (measured from records)

Highest-authority source

1 in 158 (inferred from the name graph)

Brazil

measured from records inferred from the name graph

Name dossier (print, CSV)

Spellings & scripts(measured from records)

LucasLatin(measured from records)
ЛукашCyrillic(measured from records)
ΛουκαςGreek(measured from records)
ლუკასGeorgian(measured from records)

2 other spellings are counted as the same name:

Locally spelled Lukáš in CZ Czechia and Loucas in FR France.

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)

from the personal name Lucas, from Greek Loucas, literally ‘man from Lucania’

Sources 1

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

Attested across 8 languages in the etymology graph.

How Lucas is read(measured from records)

Lucas is one spelling over 4 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.

  • Portuguese40%

    No dictionary in our sources glosses Lucas in Portuguese.

  • Spanish29%

    No dictionary in our sources glosses Lucas in Spanish.

  • French14%

    From Latin lux, 'light'; variant of Luc. Saint/name-day not given on this page.

    as a nameDictionnaire généalogique des prénoms

    From Latin Lucas/Lucius, linked to lux, 'light', or 'man from Lucania'.

    as a nameLe grand guide des prénoms (Enfant - Education)

  • English11%

    from the personal name Lucas, from Greek Loucas, literally ‘man from Lucania’

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

    learned form of Luke; first attested Lucas c1150 DC (Northumberland)

    as a nameA Dictionary of English Surnames

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)

Lucas 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 Lucas is recorded, by country
CountryMost common spellingSources
BR Brazil#191,341,5251 in 1581.3MLucas280
US United States—249,2461 in 1.3K249KLucas410
CZ Czechia#16205,964as Lukáš1 in 52206KLukáš178
AR Argentina#97≈200,000 est.≈1 in 2333.2KLucas209
FR France—≈130,000 est.≈1 in 527186KLoucas115
LT Lithuania—≈17,000 est.≈1 in 15920K—7
UY Uruguay#31≈12,000 est.≈1 in 283—Lucas99

1,341,525 people counted by IBGE — names by decade (Kaggle mirror), 2022. 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: IBGE — names by decade (Kaggle mirror); RENAPER — Apellidos (person counts, national); Census Bureau — First Name Frequency 2020 by sex; MVČR — living population register 2017; INSEE — Fichier des prénoms (1900–2024); Registrų centras — top-50 given names. 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)

Lucas is also recorded as 6 other names, grouped separately because the records behind them do not connect to the one described above.

  • English given name43 spellings in the group

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

    Languages: English, German, Dutch

    Also written Luca'S, Lúcás, 'Lucas, Lücas, Lucaś

  • French given name17 spellings in the group

    Most recorded in France, Belgium, United States, Canada

    Also written Lùcas, Lucàs, Lucãs, Lúcas, Lücas

  • Danish given name13 spellings in the group

    Most recorded in Sweden, Denmark, United States, Norway

    Languages: Danish, Swedish, Norwegian

    Also written Lücãs, Lucás, Lucâs, Lucaş, Lücäs

  • a separate name5 spellings in the group

    Also written Lucás, Lúcas, Luca-S

  • Burmese given name3 spellings in the group

    Most recorded in United States, South Africa, Hong Kong, Spain

    Also written Lûcäs, Lûcãs

  • Polish given name8 spellings in the group

    Most recorded in Poland, United States, Czechia, Slovakia

    Languages: Polish, Czech, Slovak

    Also written Lücãs, Lucãs, Lucaș, Lucaş, Lücas

102 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.

Other recorded senses(measured from records)

Lucas is also recorded in 2 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.

  • In German, from Latin Lucius/Lucanus, related to lux 'light'

    as a nameDeutsche Namenkunde: Unsere Familiennamen nach ihrer Entstehung und Bedeutung

  • In German, from the Gospel name Lucas; Latinized forms of Lücke or related names

    as a nameDeutsche Namenkunde: Unsere Familiennamen nach ihrer Entstehung und Bedeutung

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)

1400160018002000Lucas Cranach the Elder, b. 1472Lucas Cranach the Younger, b. 1515Rem Koolhaas, b. 1944Tyler Bates, b. 1965Simon Baker, b. 1969Lucas Vázquez, b. 1991Lucas Moura, b. 1992Lucas Digne, b. 1993Lucas Hedges, b. 1996

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)

InformalOlá Lucas,Hi Lucas, (English)

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 179 sources across 91 countries.

Official registers attesting Lucas
CountryRegisterYearCountRank
BR BrazilIBGE — names by decade (Kaggle mirror)20221.3M—
BR BrazilIBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname)—1.3M#9
BR BrazilIBGE — Nomes (census name API)—1.1M#31
BR BrazilIBGE — Nomes no Brasil API (Census 2010 + 2022)—1.1M#8
US United StatesCensus Bureau — First Name Frequency 2020 by sex2020249K#220
FR FranceINSEE — Fichier des prénoms (1900–2024)2024186K#16
BR BrazilIBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname)202084K—
US United StatesSSA — National Baby Names (1880–present)202510K—
BR BrazilIBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname)—9.3K#9
CZ CzechiaMVČR — living population register 2017—836#527
US United StatesCensus Bureau — First Name Frequency 2020 by sex2020557#220

Reference works 13

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

Is Lucas a male or female name?
Lucas 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 Lucas have the most bearers?
In Brazil, the national register counted about 1.3 million people named Lucas, more than in any other country we hold, where it is most often spelled lucas.
Where is Lucas most common?
Lucas is densest in Brazil, where the national register counts about 1 in 158 people carrying it.
Where does the name Lucas come from?
from the personal name Lucas, from Greek Loucas, literally ‘man from Lucania’ Recorded by Encyclopedia of surnames [the complete companion to tracing your names history].
What are other forms of the name Lucas?
In the etymology graph, Luke, Luca and Luc are forms of the same name in other languages.
What does the name Lucas mean?
In French, From Latin lux, 'light'; variant of Luc. Saint/name-day not given on this page.
How common is the name Lucas?
In Brazil, the national register counted 1,341,525 people named Lucas in 2022, about 1 in 158 residents.
How common is Lucas compared with other names?
In Brazil, Lucas is the 19th most common given name of 474,894 given names recorded there.
How do you pronounce Lucas?
A machine transcription gives /lukɐʃ/ (IPA) for Portuguese.

What do you want to know about Lucas?

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

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

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, “Lucas” — the 19th most common given name in Brazil. Data snapshot 2026-10-10.

See how Lucas parses inside a full name →