Ján
given name · Latin script
Meaning: a male given name, equivalent to English John
Recorded as a male name· opposite-gender records fall within measured source noise
Ján is a given name written in the Latin script, with more bearers in the United States than in any other country, where it is the 3rd most common given name.
- CZCzechia1 in 18(measured from records)
- RORomania1 in 48as Ioan
- IEIreland≈1 in 53as John
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 Ján 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.
- United States (measured from records)
- #6 (measured from records)
- 10 (measured from records)
- Sources
- 731 (measured from records)
- 1 in 18 (inferred from the name graph)
3,125,123 named John, 2020
of 15M given names
recorded for this name
Highest-authority source
Czechia
measured from records inferred from the name graph
Spellings & scripts(measured from records)
Locally spelled John in US United States, GB United Kingdom, PH Philippines and 2 more, Jan in CZ Czechia, Ioan in RO Romania and Ион in MD Moldova.
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)
a male given name, equivalent to English John
Sources 1
- kaikki.org Wiktionary extract (IPA + transliterations)
Attested across 8 languages in the etymology graph.
Where in the world(measured from records)
Ján 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.
| Country | Most common spelling | Sources | ||||
|---|---|---|---|---|---|---|
| US United States | #3 | 3,125,123as John | 1 in 106 | 3.1M | John | 731 |
| NG Nigeria | #11 | ≈1,200,000 est. | ≈1 in 177 | — | John | 190 |
| GB United Kingdom | #1 | ≈1,100,000 est. | ≈1 in 59 | 1.1K | John | 496 |
| PH Philippines | #3 | ≈750,000 est. | ≈1 in 145 | listed | John | 261 |
| CZ Czechia | #1 | 587,876 | 1 in 18 | 588K | Jan | 233 |
| RO Romania | #151 | 447,697as Ioan | 1 in 48 | 448K | Ioan | 96 |
| MD Moldova | #332 | 100,110as Ion | 1 in 34 | 100K | Ион | 50 |
| IE Ireland | #1 | ≈98,000 est. | ≈1 in 53 | — | John | 245 |
3,125,123 people counted by Census Bureau — First Name Frequency 2020 by sex, 2020. 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; ONS — Baby names England and Wales (2024); MVČR — living population register 2017; DEPABD — name-day population snapshot; e-services.md — living population register. 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).
Notable people with this name(measured from records)
- Roscellinusb. 1050FRnot in their usual nameFrench philosopher
- Jan Jesseniusb. 1566PLBohemian philosopher, doctor, politician and science writer (1566-1621)
- Ján Kollárb. 1793ATSlovak author writing in Czech (1793–1852)
- Ján Kadárb. 1918HUCzechoslovak director (1918–1979)
- Ján Zacharab. 1928SKCzechoslovak boxer (1928–2025)
- Ján Popluhárb. 1935SKSlovak footballer (1935–2011)
- Ján Čarnogurskýb. 1944SKSlovak politician (born 1944)
- Ján Kubišb. 1952SKSlovak politician
- Ján Kozákb. 1980SKSlovak footballer (born 1980)
- Ján Muchab. 1982SKSlovak association football player (1982–)
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 21 sources across 11 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| CZ Czechia | MVČR — living population register 2017 | — | 17K | #150 |
| CZ Czechia | naše jména — 2016 MVČR snapshot | — | 8.5K | #170 |
| CZ Czechia | KdeJsme.cz — četnost jmen a příjmení (MVČR population register front-end) | — | 8.5K | #170 |
| CZ Czechia | CZSO — 100 nejčetnějších dětských jmen (top 100 baby names 2024) | 2019 | — | #143 |
| CZ Czechia | CZSO — 100 nejčetnějších dětských jmen (top 100 baby names 2024) | 2018 | — | #180 |
| CZ Czechia | CZSO — 100 nejčetnějších dětských jmen (top 100 baby names 2024) | 2017 | — | #176 |
| CZ Czechia | CZSO — 100 nejčetnějších dětských jmen (top 100 baby names 2024) | 2016 | — | #165 |
Reference works 3
- Wikipedia given-name tokens
- Wikipedia surname 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 Ján mean, and where does it come from?
- a male given name, equivalent to English John Recorded by kaikki.org Wiktionary extract (IPA + transliterations).
- What are other forms of the name Ján?
- In the etymology graph, John, Jack and Sean are forms of the same name in other languages; Janko is a recorded short or pet form.
- Is Ján a male or female name?
- Ján 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 Ján have the most bearers?
- In the United States, the national register counted about 3.1 million people named John, more than in any other country we hold.
- Where is Ján most common?
- Measured as a share of residents rather than as a count, Ján is densest in Czechia — about 1 in 18 people — even though United States holds more of our records for it.
- How common is the name Ján?
- In Czechia, the national register counted 587,876 people named Ján, about 1 in 18 residents.
- How common is Ján compared with other names?
- In the United States, Ján is the 3rd most common given name of 2,815,431 given names recorded there.
What do you want to know about Ján?
Nobody replies to these one by one, but what readers ask decides what these pages answer next.
Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/j%C3%A1nThe 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, “Ján” — the 3rd most common given name in United States. Data snapshot 2026-10-10.