Janů

surname · Latin script

Meaning: a common-gender surname

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

Janů is a surname written in the Latin script, with more bearers in Czechia than in any other country.

rarermore common
  • CZCzechia1 in 5.8K(measured from records)
  • SKSlovakia1 in 237K
  • CHSwitzerland1 in 1.1M

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.

Czechia (measured from records)

1,851 people

Sources
33 (measured from records)

Highest-authority source

1 in 5.8K (inferred from the name graph)

Czechia

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:

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 common-gender surname

Sources 1

  • kaikki.org Wiktionary extract (IPA + transliterations)

Attested across 6 languages in the etymology graph.

Where in the world(measured from records)

Janů 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 Janů is recorded, by country
CountryMost common spellingSources
CZ Czechia1,8511 in 5.8K1.9KJanů33
IN India3121 in 4.3M312—6
US United States1261 in 2.6M126—4
BR Brazil611 in 3.5M61——
SK Slovakia231 in 237K23Janů4
PL Poland221 in 1.7M12——
CH Switzerland81 in 1.1M8——
AT Austria≈4 est.≈1 in 2.1M2——

1,851 people counted by MVČR — living population register 2017. 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: MVČR — living population register 2017; naše jména — 2016 MVČR snapshot; Instate — India surnames (clean spellings) from electoral rolls; Census Bureau — Surname Frequency 2010; IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); JÚĽŠ SAV — Databáza priezvisk na Slovensku (surname database, 1995 census); dane.gov.pl — PESEL living persons (surnames); BFS — Familiennamen der Wohnbevölkerung (surnames); Statistik Austria — STATatlas Vornamen WFS (per-name time series 1984–2024). 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)

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

  • a separate name4 spellings in the group

    Also written Janu, Jānū, Jānu

  • English given name14 spellings in the group

    Most recorded in India, United States, Australia, Pakistan

    Languages: English, German, Dutch

    Also written Janu, Jänu, Jåñu, Janú, Jâñû

  • French given name5 spellings in the group

    Most recorded in France, United States

    Also written Janu, Jãñû, Jânu

  • Hindi given name24 spellings in the group

    Most recorded in India, United States, Pakistan, United Kingdom

    Languages: Hindi, Urdu, Khmer

    Also written Janu, Jenu, జాను, Jänú, Jånú

  • Turkish given name3 spellings in the group

    Most recorded in India

    Also written Janu

2 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)

1850190019502000Rudolf Janů, b. 1879Otakar Janů, b. 1909Karel Janů, b. 1910Zorka Janů, b. 1921Ivana Janů, b. 1946Miroslav Janů, b. 1959Tomáš Janů, b. 1973Ondřej Janů, b. 1981Jan Janů, b. 1993Kamila Janů, b. 2000
  • Rudolf Janůb. 1879CZCzech legionary and professional soldier (1879-1934)
  • Otakar Janůb. 1909CZCzechoslovak writer
  • Karel Janůb. 1910CZCzech architect and university educator (1910–1995)
  • Zorka Janůb. 1921CZCzech actress (1921–1946)
  • Ivana Janůb. 1946CZCzech vicedirector of Constitutional court of the CR, member of Czech Parliament (1992-1996), member of Czech National Council and lawyer
  • Miroslav Janůb. 1959CZCzech soccer player and soccer coach (1959-2013)
  • Tomáš Janůb. 1973CZCzech soccer player
  • Ondřej Janůb. 1981CZphotographer
  • Jan Janůb. 1993CZCzech athletics competitor (born 1993)
  • Kamila Janůb. 2000CZCzech cyclist

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)

FormalVážený pane / paní Janů,Dear Janů, (English)
InformalVážený pane / paní Janů,Hello, (English)

Evidence(measured from records)

Attested in 8 sources across 3 countries.

Official registers attesting Janů
CountryRegisterYearCountRank
CZ Czechianaše jména — 2016 MVČR snapshot—1.9K#657
CZ CzechiaKdeJsme.cz — četnost jmen a příjmení (MVČR population register front-end)—1.9K#656
CZ CzechiaMVČR — living population register 2017—1.9K#659
SK SlovakiaJÚĽŠ SAV — Databáza priezvisk na Slovensku (surname database, 1995 census)199523—
PL Polanddane.gov.pl — PESEL living persons (surnames)20262—
PL Polanddane.gov.pl — PESEL living persons (names)—2#340,149

Reference works 2

  • 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 Janů mean, and where does it come from?
a common-gender surname Recorded by kaikki.org Wiktionary extract (IPA + transliterations).
How do you pronounce Janů?
A machine transcription gives /januː/ (IPA) for Czech.
In which country does Janů have the most bearers?
In Czechia, the national register counted about 1.9 thousand people named Janů, more than in any other country we hold, where it is most often spelled janů.
Where is Janů most common?
Janů is densest in Czechia, where the national register counts about 1 in 5.8 thousand people carrying it.
How common is the name Janů?
In Czechia, the national register counted 1,851 people named Janů, about 1 in 5.8 thousand residents.

What do you want to know about Janů?

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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/jan%C5%AF

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, “Janů”. Data snapshot 2026-10-10.

See how Janů parses inside a full name →