Ondřejka

given name · Latin script

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

Ondřejka is a given name written in the Latin script, with more bearers in Slovakia than in any other country.

rarermore common
  • SKSlovakia1 in 4K(measured from records)
  • CZCzechia1 in 52K
  • USUnited States1 in 2M

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.

Slovakia (measured from records)

1,351 people, 1995

Sources
53 (measured from records)

Highest-authority source

1 in 4.0K (inferred from the name graph)

Slovakia

measured from records inferred from the name graph

Spellings & scripts(measured from records)

One other spelling is counted as the same name:

Locally spelled Ondrejka in SK Slovakia, CZ Czechia, US United States and 1 more.

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

No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.

Attested across 12 languages in the etymology graph.

Where in the world(measured from records)

Ondřejka 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 Ondřejka is recorded, by country
CountryMost common spellingSources
SK Slovakia#2681,3511 in 4K1.4KOndrejka53
CZ Czechia—2041 in 52K204Ondrejka35
US United States—1661 in 2M169Ondrejka41
GB United Kingdom—≈24 est.≈1 in 2.7M—Ondrejka6
NL Netherlands—61 in 2.9M6—1

1,351 people counted by JÚĽŠ SAV — Databáza priezvisk na Slovensku (surname database, 1995 census), 1995. 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: JÚĽŠ SAV — Databáza priezvisk na Slovensku (surname database, 1995 census); MVČR — living population register 2017; Census Bureau — Surname Frequency 2010; Census Bureau — Surname Frequency 2000; CBG Familienamenbank — Dutch surname bearer counts (GBA/BRP 2007). 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)

Ondřejka is also recorded as another name, grouped separately because the records behind them do not connect to the one described above.

  • English surname5 spellings in the group

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

    Languages: English, German, Dutch

    Also written Ondrejka

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)

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 5 sources across 1 country.

Official registers attesting Ondřejka
CountryRegisterYearCountRank
CZ CzechiaMVČR — living population register 2017—156#1,069
CZ Czechianaše jména — 2016 MVČR snapshot—78#1,148

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

Is Ondřejka a male or female name?
Ondřejka is a female 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 Ondřejka have the most bearers?
In Slovakia, the national register counted about 1.4 thousand people named Ondřejka, more than in any other country we hold, where it is most often spelled ondrejka.
Where is Ondřejka most common?
Ondřejka is densest in Slovakia, where the national register counts about 1 in 4.0 thousand people carrying it.
How common is the name Ondřejka?
In Slovakia, the national register counted 1,351 people named Ondřejka in 1995, about 1 in 4.0 thousand residents.
How common is Ondřejka compared with other names?
In Slovakia, Ondřejka is the 268th most common surname of 69,668 surnames recorded there.

What do you want to know about Ondřejka?

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/ond%C5%99ejka

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, “Ondřejka” — the 268th most common surname in Slovakia. Data snapshot 2026-10-10.

See how Ondřejka parses inside a full name →