Jánko

given name · Latin script

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

Jánko is a given name written in the Latin script, with more bearers in Slovenia than in any other country. Recorded meaning: from a pet form of the Slavic personal name Jan, Slovenian Janez, Hungarian Janos, vernacular forms of Latin Johannes (see John).

rarermore common
  • USUnited States1 in 2.4M(measured from records)
  • SISlovenia1 in 557
  • HRCroatia1 in 1.5K

carrying the name, as counted by each country's national register. One hue, darker where it is more common; hover a country for its figure.

Slovenia (measured from records)

3,776 people, 2025

Sources
159 (measured from records)

Highest-authority source

1 in 557 (inferred from the name graph)

Slovenia

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 Janko in SI Slovenia, US United States, NL Netherlands.

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 a pet form of the Slavic personal name Jan, Slovenian Janez, Hungarian Janos, vernacular forms of Latin Johannes (see John).

Sources 2

Attested across 20 languages in the etymology graph.

Where in the world(measured from records)

Jánko 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 Jánko is recorded, by country
CountryMost common spellingSources
SI Slovenia#8153,7761 in 5573.8KJanko17
HR Croatia—2,7551 in 1.5K2.8K—2
NL Netherlands—2631 in 66K263Janko31
US United States—1401 in 2.4M526Janko159
SE Sweden—881 in 116K88—1
FI Finland—161 in 348K51—1

3,776 people counted by SURS — resident population given names, 2025. 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: SURS — resident population given names; DZS — Imena i prezimena (per-token lookup form); Census Bureau — First Name Frequency 2020 by sex; Census Bureau — Surname Frequency 2000; Meertens NVB — Nederlandse Voornamenbank (all-time BRP bearer counts, 2018); Skatteverket — Sök hur många som har ett visst namn (living population); DVV — Etunimitilasto (Finnish given names register); DVV — Nimipalvelu (Finnish name service, per-name lookup). 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).

Evidence(measured from records)

No register attests this spelling yet

None of the official registers or reference works in our corpus lists Jánko under this spelling. The statistics on this page rest on person records, and the related names are inferred from the name graph.

Frequently asked questions

What does the name Jánko mean, and where does it come from?
from a pet form of the Slavic personal name Jan, Slovenian Janez, Hungarian Janos, vernacular forms of Latin Johannes (see John). Recorded by Dictionary of American Family Names and Nordic Names.
Is Jánko a male or female name?
Jánko 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 Jánko have the most bearers?
In Slovenia, the national register counted about 3.8 thousand people named Jánko, more than in any other country we hold, where it is most often spelled janko.
Where is Jánko most common?
Jánko is densest in Slovenia, where the national register counts about 1 in 557 people carrying it.
How common is the name Jánko?
In Slovenia, the national register counted 3,776 people named Jánko in 2025, about 1 in 557 residents.
How common is Jánko compared with other names?
In Slovenia, Jánko is the 815th most common given name of 4,300 given names recorded there.

What do you want to know about Jánko?

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/j%C3%A1nko

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, “Jánko” — the 815th most common given name in Slovenia. Data snapshot 2026-10-10.

See how Jánko parses inside a full name →