Kostyk
surname · Latin script
Meaning: from a pet form of Constantine
(measured from records)Officially recorded in 8 countries · latest register: dane.gov.pl, 2026
Kostyk is a surname written in the Latin script, with more bearers in Poland than in any other country.
- PLPoland1 in 35K(measured from records)
- UAUkraine≈1 in 44K
- CACanada≈1 in 240Kfew records
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 Kostyk 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.
- Poland (measured from records)
- 2 (measured from records)
- Record sources
- 133 (measured from records)
- 1 in 35K (inferred from the name graph)
1,102 people, 2026
recorded for this name
corpus datasets behind its best-documented spelling
strongest: highest-authority source
Poland
measured from records inferred from the name graph
Spellings & scripts
(measured from records)Locally spelled Костик in RU Russia, TR Türkiye.
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 Constantine.
Cited for this meaning 1
- Dictionary of American Family Names
Attested across 2 languages in the etymology graph.
Where in the world
(measured from records)Kostyk 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 | |||
|---|---|---|---|---|---|
| PL Poland | 1,102 | 1 in 35K | 559 | — | 2 |
| UA Ukraine | ≈850 est. | ≈1 in 44K | — | Kostyk | 34 |
| TR Türkiye | ≈430 est. | ≈1 in 198K | — | Костик | 2 |
| US United States | 253 | 1 in 1.3M | 296 | Kostyk | 133 |
| RU Russia | ≈240 est. | ≈1 in 593K | — | Костик | 113 |
| CA Canada | ≈170 est. | ≈1 in 238K | — | Kostyk | 50 |
| BB Barbados | ≈2 est. | ≈1 in 131K | — | Kostyk | 2 |
1,102 people counted by dane.gov.pl — PESEL living persons (surnames), 2026. 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: Census Bureau — Surname Frequency 2010; Census Bureau — Surname Frequency 2000; 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)- Orest Kostykb. 1999UAUkrainian footballer
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)17 registers and reference works attest this spelling, across 8 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| PL Poland | dane.gov.pl — PESEL living persons (surnames) | 2026 | 559 | — |
| PL Poland | dane.gov.pl — PESEL living persons (names) | — | 559 | #5,689 |
| PL Poland | dane.gov.pl — PESEL living persons (surnames) | 2026 | 543 | — |
| PL Poland | dane.gov.pl — PESEL living persons (names) | — | 543 | #5,995 |
| US United States | Census Bureau — Surname Frequency 2000 | 2000 | 296 | #63,141 |
| US United States | Census Bureau — Surname Frequency 2020 | 2020 | 292 | #71,896 |
| US United States | Census Bureau — Surname Frequency 2010 | 2010 | 253 | #76,029 |
| US United States | wru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.) | — | — | — |
Reference works 4
- Dictionary of American Family Names
- Wikidata name items (native-script + romanized given/family names)
- Rymut, Słownik nazwisk współcześnie w Polsce używanych (10 vols, IJP PAN, Kraków 1992–1994) — every Polish surname in the PESEL register at the end of 1990, with bearer counts nationally and per voivodeship1990
- Hoffman, Polish Surnames: Origins and Meanings (2nd ed., 2012)
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 Kostyk mean, and where does it come from?
- from a pet form of Constantine. Recorded by Dictionary of American Family Names.
- In which country does Kostyk have the most bearers?
- In Poland, the national register counted about 1.1 thousand people named Kostyk, more than in any other country we hold.
- Where is Kostyk most common?
- Kostyk is densest in Poland, where the national register counts about 1 in 35 thousand people carrying it.
- How common is the name Kostyk?
- In Poland, the national register counted 1,102 people named Kostyk in 2026, about 1 in 35 thousand residents.
What do you want to know about Kostyk?
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/kostykThe 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, “Kostyk”. Data snapshot 2026-10-13.