Sidak

surname · Latin script

Recorded for both men and women· direction only, no split published

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

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

rarermore common
  • UAUkraine≈1 in 35Kas Сідак(inferred from the name graph)
  • RURussia≈1 in 338Kas Сидак
  • CZCzechia1 in 115K

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 Sidak 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.

Ukraine (inferred from the name graph)

≈1,200 named Сідак, est.

2 (measured from records)

recorded for this name

Sources
89 (measured from records)

Highest-authority source

1 in 115K (inferred from the name graph)

Czechia

measured from records inferred from the name graph

Spellings & scripts(measured from records)

SidakLatin(measured from records)
СідакCyrillic(measured from records)

One other spelling is counted as the same name:

Locally spelled Сидак in RU Russia, KZ Kazakhstan, Сідак in UA Ukraine and Šidák in CZ Czechia.

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.

Where in the world(measured from records)

Sidak 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 Sidak is recorded, by country
CountryMost common spellingSources
UA Ukraine≈1,200 est.≈1 in 35K—Сідак25
IN India≈580 est.≈1 in 2.3M1—1
RU Russia≈420 est.≈1 in 338K—Сидак89
PL Poland981 in 391K55Sidak3
CZ Czechia931 in 115K93Šidák8
KZ Kazakhstan≈57 est.≈1 in 332K—Сидак21
HR Croatia181 in 235K18——

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; dane.gov.pl — PESEL living persons (surnames); DZS — Imena i prezimena (per-token lookup form); naampy — India given names from state electoral rolls (in-rolls). 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)

Sidak is also recorded as 4 other names, grouped separately because the records behind them do not connect to the one described above.

  • Hindi surname4 spellings in the group

    Most recorded in India

    Also written Śîdák, Šidák

  • a separate name4 spellings in the group

    Also written Šidák, Šidak, Sìdak

  • Croatian surname8 spellings in the group

    Most recorded in Croatia, Ukraine

    Also written Šidak, Сидак, Šidák

  • Spanish surname5 spellings in the group

    Most recorded in United States, Spain

    Also written Šidak, Šidák

28 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)

Sidak is also recorded in one other lexicon, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.

  • In Indonesian, syllabic abbreviation of inspeksi mendadak (“surprise inspection, sudden inspection, unannounced inspection”)

    as a wordkaikki.org Wiktionary extract (IPA + transliterations)

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.

How to address them(machine-generated)

FormalDear Sidak,
InformalHello,

Evidence(measured from records)

Attested in 18 sources across 10 countries.

Reference works 2

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

How do you pronounce Sidak?
A machine transcription gives /ˈsɪdæk/ (IPA) for Ukrainian.
In which country does Sidak have the most bearers?
Mondonomo estimates about 1.2 thousand people named Сідак in Ukraine, more than in any other country we hold.
Where is Sidak most common?
Measured as a share of residents rather than as a count, Sidak is densest in Czechia — about 1 in 115 thousand people — even though Ukraine holds more of our records for it.
How common is the name Sidak?
In Poland, the national register counted 98 people named Sidak in 2026, about 1 in 391 thousand residents.

What do you want to know about Sidak?

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/sidak

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, “Sidak”. Data snapshot 2026-10-10.

See how Sidak parses inside a full name →