Justin

given name · Latin script

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

Justin is a given name written in the Latin script, with more bearers in China than in any other country. Recorded meaning: Latin ‘just’; in Ireland equated with Saerbhreathach, ‘noble judge’.

rarermore common
  • USUnited States1 in 498(measured from records)
  • AUAustralia≈1 in 725
  • NZNew Zealand≈1 in 996

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)

≈690,000 people, est.

#288 (measured from records)

of 15M given names

3 (measured from records)

recorded for this name

Sources
653 (measured from records)

Highest-authority source

1 in 498 (inferred from the name graph)

United States

measured from records inferred from the name graph

Name dossier (print, CSV)

Spellings & scripts(measured from records)

JustinLatin(measured from records)
저스틴Hangul(measured from records)
ΤζαστινGreek(measured from records)

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)

Latin ‘just’; in Ireland equated with Saerbhreathach, ‘noble judge’. Frequently used in the MacCarthy family.

Sources 1

  • Irish first names

Attested across 8 languages in the etymology graph.

Where in the world(measured from records)

Justin 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 Justin is recorded, by country
CountryMost common spellingSources
CN China—≈690,000 est.≈1 in 2K—Justin78
US United States#115668,5661 in 498667KJustin653
MM Myanmar (Burma)#220≈50,000 est.≈1 in 1.1K—Justin32
GB United Kingdom#227≈50,000 est.≈1 in 1.3K—Justin343
CA Canada#176≈37,000 est.≈1 in 1K12Justin328
AU Australia#139≈35,000 est.≈1 in 725115Justin289
EC Ecuador—16,6991 in 1K17K—41
NZ New Zealand#146≈4,900 est.≈1 in 99615Justin160

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; NSW BDM — Popular baby names (1952–present); Alberta Open Government — Frequency and Ranking of Baby Names by Year and Gender; INEC — civil registry names; DIA — Baby name popularity (1900–present). 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)

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

  • Spanish given name43 spellings in the group

    Most recorded in United States, Philippines, Colombia, Argentina

    Languages: Spanish, Portuguese, Romanian

    Also written Justín, Jüstïn, Jüstin, Justìn, Jústin

  • French given name30 spellings in the group

    Most recorded in France, United States, Canada, Belgium

    Languages: French, Catalan

    Also written Just'In, Jūstin, Jûstîn, Justîn, Justìn

  • a separate name2 spellings in the group

    Also written Justín

  • Polish given name64 spellings in the group

    Most recorded in United States, Poland, Czechia, Russia

    Languages: Polish, Russian, Czech

    Also written Dzhastin, Джастин, Юстин, Yustyn, Iustin

  • Arabic given name9 spellings in the group

    Most recorded in United States, Egypt, Saudi Arabia, Israel

    Languages: Arabic, Hebrew, Amharic

    Also written ג'סטין, יוסטין, Justine, Justīne, Jüstîñ

  • Indonesian given name7 spellings in the group

    Most recorded in Indonesia, Malaysia, United States, Philippines

    Languages: Indonesian, Malay, Malagasy

    Also written 'Justin, Jüstin, Jûstîn, Jūśťïń

85 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)

Justin is also recorded in 5 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.

  • In French, From Latin Justinus, derived from Justus 'just, fair'.

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

  • In English, from Latin Justinus, a personal name; first attested Justinus Clericus 1175–80 Holme (Nf)

    as a nameA Dictionary of English Surnames

  • Latin, ‘just’. In Ireland this name was equated with Saerbhreathach, noble judge’. It is frequently used in the MacCarthy family.

    as a nameIrish first names

  • English form of the Latin name Justinus, a derivative of Justus. The name was borne by various early saints, notably a 2nd-century Christian apologist and a (possibly spurious) boy martyr of the 3rd century. As an English name, Justin has enjoyed considerable popularity in the second part of the 20th century.

    as a nameA concise dictionary of first names

  • from a medieval personal name, Latin Justinus, a derivative of Justus (see Just). This name was borne by various early saints, including a 3rd-century Parisian martyr and the first archbishop of Tarbes.

    as a nameDictionary of American Family Names

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)

0500100015002000Justin I, b. 450Seamus Heaney, b. 1939Sean Penn, b. 1960Gore Verbinski, b. 1964Justin Chambers, b. 1970Justin Trudeau, b. 1971Justin Bartha, b. 1978Justin Gatlin, b. 1982Justin Chatwin, b. 1982Biebs, b. 1994
  • Justin Ib. 450TREmperor of the Byzantine Empire from 518 to 527 (450-527)
  • Seamus Heaneyb. 1939IEnot in their usual nameIrish poet, playwright, translator, lecturer (1939–2013)
  • Sean Pennb. 1960USnot in their usual nameAmerican actor
  • Gore Verbinskib. 1964USnot in their usual nameAmerican film director (born 1964)
  • Justin Chambersb. 1970USAmerican actor and former model
  • Justin Trudeaub. 1971CA23rd prime minister of Canada from 2015 to 2025
  • Justin Barthab. 1978USAmerican actor
  • Justin Gatlinb. 1982USAmerican sprinter
  • Justin Chatwinb. 1982CACanadian film and television actor
  • Biebsb. 1994CAnot in their usual nameCanadian singer-songwriter (born 1994)

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 139 sources across 73 countries.

Official registers attesting Justin
CountryRegisterYearCountRank
US United StatesCensus Bureau — First Name Frequency 2020 by sex2020667K#55
EC EcuadorINEC — civil registry names202417K#139
US United StatesCensus Bureau — First Name Frequency 2020 by sex20201.6K#55
US United StatesSSA — National Baby Names (1880–present)20251.5K—
CA CanadaStatistics Canada — First names at birth by sex at birth (Table 17-10-0147-01)2024164—
AU AustraliaNSW BDM — Popular baby names (1952–present)2010115#90
AU AustraliaQLD BDM — Top 100 Baby Names Queensland (1960–present)200461—
CA CanadaAlberta Open Government — Frequency and Ranking of Baby Names by Year and Gender202412#370
CA CanadaStatistics Canada — First names at birth by sex at birth (Table 17-10-0147-01)20015—

Reference works 7

  • Dictionary of American Family Names
  • The Oxford Dictionary of Family Names in Britain and Ireland
  • Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
  • Wikipedia given-name tokens
  • 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

Is Justin a male or female name?
Justin 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.
Where does the name Justin come from?
Latin ‘just’; in Ireland equated with Saerbhreathach, ‘noble judge’. Frequently used in the MacCarthy family. Recorded by Irish first names.
In which country does Justin have the most bearers?
Mondonomo estimates about 687 thousand people named Justin in China, more than in any other country we hold, where it is most often spelled justin.
Where is Justin most common?
Measured as a share of residents rather than as a count, Justin is densest in the United States — about 1 in 498 people — even though China holds more of our records for it.
How common is the name Justin?
In the United States, the national register counted 668,566 people named Justin in 2020, about 1 in 498 residents.
How common is Justin compared with other names?
In the United States, Justin is the 115th most common given name of 2,815,431 given names recorded there.
What does the name Justin mean?
Recorded meaning: Latin ‘just’; in Ireland equated with Saerbhreathach, ‘noble judge’.
What are other forms of the name Justin?
In the etymology graph, Justino, Justus and Justyn are forms of the same name in other languages.

What do you want to know about Justin?

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

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, “Justin” — the 115th most common given name in United States. Data snapshot 2026-10-10.

See how Justin parses inside a full name →