Sijak
surname · Latin script
Recorded for both men and women· direction only, no split published
/siʒæk/(machine-generated) pronunciation, model-generated
Sijak is a surname written in the Latin script, with more bearers in Croatia than in any other country.
- HRCroatia1 in 30K(measured from records)
- CHSwitzerland1 in 934K
- PLPoland1 in 5.5M
carrying the name, as counted by each country's national register. Where a country counts another spelling of the name rather than Sijak 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.
- Croatia (measured from records)
- Sources
- 13 (measured from records)
- 1 in 30K (inferred from the name graph)
139 people, 2021
Highest-authority source
Croatia
measured from records inferred from the name graph
Spellings & scripts(measured from records)
One other spelling is counted as the same name:
Locally spelled Siyak in IN India.
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 3 languages in the etymology graph.
Where in the world(measured from records)
Sijak 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 | |||
|---|---|---|---|---|---|
| HR Croatia | 139 | 1 in 30K | 139 | — | — |
| IN India | 32as Siyak | 1 in 41M | 32 | Siyak | 5 |
| CH Switzerland | 9 | 1 in 934K | 9 | — | 1 |
| PL Poland | 7 | 1 in 5.5M | 4 | — | 1 |
| US United States | — | — | listed | Sijak | 13 |
| AT Austria | — | — | — | Sijak | 9 |
139 people counted by DZS — Imena i prezimena (per-token lookup form), 2021. 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: DZS — Imena i prezimena (per-token lookup form); the us-wru-surnames-voterfile register; Instate — India surnames (clean spellings) from electoral rolls; BFS — Familiennamen der Wohnbevölkerung (surnames); dane.gov.pl — PESEL living persons (surnames). 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)
- Ostap Siyakb. 1879PLnot in their usual nameUkrainian social activist
- Mariia Siiakb. 1880UAnot in their usual nameUkrainian actress
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)
Evidence(measured from records)
Attested in 5 sources across 3 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| CH Switzerland | BFS — Familiennamen der Wohnbevölkerung (surnames) | 2024 | 9 | #65,843 |
| PL Poland | dane.gov.pl — PESEL living persons (surnames) | 2026 | 4 | — |
| PL Poland | dane.gov.pl — PESEL living persons (names) | — | 4 | #240,419 |
| PL Poland | dane.gov.pl — PESEL living persons (surnames) | 2026 | 3 | — |
| PL Poland | dane.gov.pl — PESEL living persons (names) | — | 3 | #289,358 |
| US United States | wru Name Dictionary — US surnames, voter-file supplement (Khanna et al.) | — | — | — |
Reference works 1
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 Sijak?
- A machine transcription gives /siʒæk/ (IPA) for English.
- In which country does Sijak have the most bearers?
- In Croatia, the national register counted about 139 people named Sijak, more than in any other country we hold.
- Where is Sijak most common?
- Sijak is densest in Croatia, where the national register counts about 1 in 30 thousand people carrying it.
- How common is the name Sijak?
- In Croatia, the national register counted 139 people named Sijak in 2021, about 1 in 30 thousand residents.
What do you want to know about Sijak?
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/sijakThe 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, “Sijak”. Data snapshot 2026-10-10.