Kostiantyn
given name · Latin script
Recorded as a male name· opposite-gender records fall within measured source noise
Kostiantyn is a given name written in the Latin script, with more bearers in Ukraine than in any other country, where it is the 73rd most common given name.
- EEEstonia≈1 in 11K(inferred from the name graph)
- UAUkraine≈1 in 348as Костянтин
- RURussia≈1 in 86Kas Петрович
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 Kostiantyn 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)
- 3 (measured from records)
- Sources
- 176 (measured from records)
- 1 in 3.4K (inferred from the name graph)
≈130,000 named Костянтин, est.
recorded for this name
Highest-authority source
Poland
measured from records inferred from the name graph
Spellings & scripts(measured from records)
Locally spelled Петрович in RU Russia, UA Ukraine, EE Estonia and Petrović in BA Bosnia & Herzegovina.
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 9 languages in the etymology graph.
Where in the world(measured from records)
Kostiantyn 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 | ||||
|---|---|---|---|---|---|---|
| UA Ukraine | #73 | ≈130,000 est. | ≈1 in 348 | listed | Петрович | 117 |
| PL Poland | — | 11,305 | 1 in 3.4K | 11K | Kostiantyn | 43 |
| RU Russia | — | ≈1,700 est. | ≈1 in 86K | — | Петрович | 152 |
| ES Spain | — | 515 | 1 in 97K | 515 | Kostiantyn | 21 |
| NO Norway | — | 406 | 1 in 13K | 1.6K | Kostiantyn | 14 |
| BA Bosnia & Herzegovina | — | ≈130 est. | ≈1 in 29K | — | Petrović | 26 |
| EE Estonia | #755 | ≈110 est. | ≈1 in 11K | 8 | Петрович | 10 |
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: dane.gov.pl — PESEL given names (first + second name position, 2026-01-20); Statistics Estonia — per-name Population Register counts (nimed); SSB PxWebApi — Persons/Last names by year (StatBank tables 10501/12891); SSB — Navnesøk (name-search service, living population); INE — Padrón per-token widgets (current living counts, given + apellidos). 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 recorded senses(measured from records)
Kostiantyn 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 English, A transliteration of the Ukrainian male given name Костянти́н (Kostjantýn).
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.
Notable people with this name(measured from records)
- Kost Levytskyb. 1859UAnot in their usual nameUkrainian politician (1859-1941)
- Kost Pankiwskyjb. 1897USnot in their usual nameUkrainian statesman
- Kostiantyn Dankevychb. 1905UAUkrainian composer (1905-1984)
- Konstantin Buteykob. 1923RUnot in their usual nameUkrainian and Russian physician
- Kostyantyn Morozovb. 1944UAnot in their usual nameUkrainian diplomat
- Kostjantyn Hryščenkob. 1953UAnot in their usual nameUkrainian diplomat and politician
- Konstantin Ivashchenkob. 1963UAnot in their usual nameUkrainian separatist politician
- Kostyantyn Doroshenkob. 1972UAnot in their usual nameSoviet journalist
- Kostyantyn Rurakb. 1974UAnot in their usual nameathletics competitor, coach
- Melovinb. 1997UAnot in their usual nameUkrainian singer and songwriter
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 24 sources across 15 countries.
Register rows as of the 2026-10-09 data build.
Frequently asked questions
- Is Kostiantyn a male or female name?
- Kostiantyn 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 Kostiantyn have the most bearers?
- Mondonomo estimates about 126 thousand people named Костянтин in Ukraine, more than in any other country we hold.
- Where is Kostiantyn most common?
- Measured as a share of residents rather than as a count, Kostiantyn is densest in Poland — about 1 in 3.4 thousand people — even though Ukraine holds more of our records for it.
- How common is the name Kostiantyn?
- In Poland, the national register counted 11,305 people named Kostiantyn in 2026, about 1 in 3.4 thousand residents.
- How common is Kostiantyn compared with other names?
- In Ukraine, Kostiantyn is the 73rd most common given name of 85,149 given names recorded there.
What do you want to know about Kostiantyn?
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/kostiantynThe 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, “Kostiantyn” — the 73rd most common given name in Ukraine. Data snapshot 2026-10-10.