Kostyantyn
given name · Latin script
Meaning: A transliteration of the Ukrainian male given name Костянти́н (Kostjantýn)
Recorded as a male name· opposite-gender records fall within measured source noise
/koʊstʲiəntɪn/(machine-generated) pronunciation, model-generated
Kostyantyn is a given name written in the Latin script, with more bearers in Poland than in any other country.
- USUnited States1 in 1.9M(measured from records)
- EEEstonia≈1 in 39K
- CYCyprus≈1 in 73K
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.
- Poland (measured from records)
- 2 (measured from records)
- Sources
- 97 (measured from records)
- ≈1 in 39K (inferred from the name graph)
391 people, 2026
recorded for this name
Highest-authority source
Estonia, est.
measured from records inferred from the name graph
Spellings & scripts(measured from records)
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)
A transliteration of the Ukrainian male given name Костянти́н (Kostjantýn).
Sources 1
- kaikki.org Wiktionary extract (IPA + transliterations)
Attested across 14 languages in the etymology graph.
Where in the world(measured from records)
Kostyantyn 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 | 391 | 1 in 98K | 391 | Kostyantyn | 17 |
| ES Spain | 185 | 1 in 270K | 185 | Kostyantyn | 23 |
| US United States | 173 | 1 in 1.9M | 173 | Kostyantyn | 97 |
| DE Germany | ≈88 est. | ≈1 in 912K | — | Kostyantyn | 37 |
| IT Italy | ≈75 est. | ≈1 in 830K | — | Kostyantyn | 13 |
| PT Portugal | ≈67 est. | ≈1 in 154K | listed | Kostyantyn | 19 |
| EE Estonia | ≈31 est. | ≈1 in 39K | 16 | Kostyantyn | 7 |
| CY Cyprus | ≈17 est. | ≈1 in 73K | — | Kostyantyn | 10 |
| LV Latvia | 11 | 1 in 171K | 11 | — | 4 |
391 people counted by dane.gov.pl — PESEL given names (first + second name position, 2026-01-20), 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 — First Name Frequency 2020 by sex; dane.gov.pl — PESEL given names (first + second name position, 2026-01-20); INE — Padrón per-token widgets (current living counts, given + apellidos); the pt-irn-lista-nomes register; Statistics Estonia — per-name Population Register counts (nimed); PMLP — Personu vārdi (given names in population register). 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)
- Grand Duke Konstantin Pavlovich of Russiab. 1779RUnot in their usual nameRussian grand duke (1779–1831)
- Konstantin Tsiolkovskyb. 1857RUnot in their usual nameRussian and Soviet rocket scientist and pioneer of the astronautic theory (1857-1935)
- Constantine Stanislavskyb. 1863RUnot in their usual nameRussian actor and theatre director (1863–1938)
- Konstantin Balmontb. 1867FRnot in their usual nameRussian poet (1867–1942)
- Konstantin Pätsb. 1874EEnot in their usual nameEstonian politician (1874–1956)
- Konstanty Rokossowskib. 1889BYnot in their usual nameSoviet and Polish military commander (1896-1968)
- Konstantin Chernenkob. 1911RUnot in their usual nameGeneral Secretary of the Communist Party of the Soviet Union (1911-1985)
- Konstantin Feoktistovb. 1926RUnot in their usual nameSoviet cosmonaut
- Konstantin Novoselovb. 1974RUnot in their usual nameRussian-British physicist known for graphene work
- Konstantin Zyryanovb. 1977RUnot in their usual nameRussian 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)
A formal English salutation is built on the surname, so it needs a full name — on its own, a first name only supports the informal form.
Evidence(measured from records)
Attested in 23 sources across 15 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| PL Poland | dane.gov.pl — PESEL given names (first + second name position, 2026-01-20) | 2026 | 391 | #819 |
| PL Poland | dane.gov.pl — PESEL living persons (names) | — | 389 | #782 |
| ES Spain | INE — Padrón per-token widgets (current living counts, given + apellidos) | — | 185 | #9,564 |
| US United States | Census Bureau — First Name Frequency 2020 by sex | 2020 | 173 | #41,955 |
| ES Spain | INE — Nombres más frecuentes (Padrón Municipal) | — | 152 | #5,189 |
| EE Estonia | Statistics Estonia — per-name Population Register counts (nimed) | — | 16 | #1,690 |
| LV Latvia | PMLP — Personu vārdi (given names in population register) | — | 11 | — |
| PL Poland | Ministry of Digitalization — Imiona nadawane dzieciom w Polsce (2000–present) | 2024 | 2 | — |
| EE Estonia | Siseministeerium — population register name list 2023 | 2023 | — | — |
| PT Portugal | IRN — Lista de Nomes Próprios admitidos | — | — | — |
Reference works 2
- Wikipedia given-name 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
- What does the name Kostyantyn mean, and where does it come from?
- A transliteration of the Ukrainian male given name Костянти́н (Kostjantýn). Recorded by kaikki.org Wiktionary extract (IPA + transliterations).
- How do you pronounce Kostyantyn?
- A machine transcription gives /koʊstʲiəntɪn/ (IPA) for Ukrainian.
- Is Kostyantyn a male or female name?
- Kostyantyn 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.
- What are other forms of the name Kostyantyn?
- In the etymology graph, Konstantin, Constantin and Konstanty are forms of the same name in other languages.
- In which country does Kostyantyn have the most bearers?
- In Poland, the national register counted about 391 people named Kostyantyn, more than in any other country we hold, where it is most often spelled kostyantyn.
- How common is the name Kostyantyn?
- In Poland, the national register counted 391 people named Kostyantyn in 2026, about 1 in 98 thousand residents.
What do you want to know about Kostyantyn?
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/kostyantynThe 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, “Kostyantyn”. Data snapshot 2026-10-10.