Globally, Kostiantyn (Костянтин 
, Kostiantyn 
, Костянтын ) is a widespread boy's first name. The given name Kostiantyn is habitual in Eastern Europe, particularly Ukraine, where it is a common boy's name, Poland, where it is a very rare male name, and Russia. Much less frequently, Kostiantyn is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Костянтин | Russia, Ukraine |
| Kostiantyn | Moldova, Ukraine, Spain, Poland, United States |
| Костянтын | Russia |
| Петрович | Ukraine, Kazakhstan, Belarus, Russia, Azerbaijan |
C-Tin, Constantijn, Constantin, Constantine, Constantino, Constantinus, Constantí, Costantinos, Costas, Konstantin, Konstantinas, Konstantinos, Konstanty, Konstantyn, Konstantín, Konstantínos, Kost, Kosta, Kostas, Kostjantyn, Kostyantyn, Κωνσταντίνος, Κώστας, Ντίνος, Канстанцін, Константи, Константин, Константино, Константинос, Константы, Константій, Константінос, Коста, Костен, Костиантын, Кость, Костя, קונסטנטין, قسطنطين, كونستانتين, კონსტანტინე, and コスタ
Kostiantyn is also a name for the fictitious and mythical characters: Konstantin Kovar , the fictional character from the television series Arrow; Konstantin Gavrilovich Treplyov , the character in the play "The Seagull"; Konstantin Dmitrievich Levin , the character in Anna Karenina and Konstantin Riedmüller , character in Storm of Love.
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kostiantyn myloslavskyi botanist (1890-1937) (b. 1890) |
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| kostiantyn bohuslavskyi Soviet singer and composer (1895-1943) (b. 1895) |
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| kostiantyn us association football player (b. 1899) |
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| kostiantyn czechowycz PL (b. 1896) |
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| kostiantyn shaparenko Ukrainian Soviet botanist (1908-1941) (b. 1908) |
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| kostiantyn shkolniy Ukrainian archer, UA (b. 1961) |
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| kostiantyn kryvolapov chess player (b. 1962) |
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| kostiantyn bucenko ice hockey player (1969-), UA (b. 1969) |
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| kostiantyn tomilchenko Ukrainian dancer & choreographer (b. 1977) |
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| kostiantyn protchenko researcher (ORCID 0000-0003-1357-2174) |
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| kostiantyn nechay researcher ORCID ID = 0000-0002-2047-2836 |
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| kostiantyn shabelnyk researcher (ORCID 0000-0003-2008-8380) |
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| kostiantyn v sopiha researcher |
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| kostiantyn kulyk researcher |
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| kostiantyn drach Ph.D. Vasyl Karazin Kharkiv National University and Sumy State University 2016 |
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Gura, Shevchuk, Sydorenko, Kolesnyk, Pavlenko, Poliakov, Romaniuk, Denysenko, Diachenko, Gorbunov, Lakhonia, Vasyliev, Volobuiev, Mironchyk, Kartashov, Kovalchuk, Shevchenko, Aleksieiev, Bondarenko, Kharchenko, Kravchenko, Nesterenko, Zazvonov, Iurchak, Iantsen, Lunehov, Savin, Butov, Koval, Popov, Rybak, Danko, Galan, Zubov, Melnyk, Shkoda, Marianovskyi, Kostin, Tiurin, Volkov, Ivanov, Morozov, Alerhush, Karakis, Kliuiev, Pataman, Radzivliuk, Demchuk, Prodan, and Konstantynov