Globally, Konstantinos (Konstantinos 
, Κώστας , Ντίνος , along with others...) is a widespread masculine first name. The forename Konstantinos is habitual in Greece, where it is a prevalent male name, Cyprus, where it is quite a common boy's name, and Germany, where it is quite a rare masculine name. Not in comparison with a country's population, this name is the most popular in Greece, Germany, and the United States. Likewise, Konstantinos is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Konstantinos | Germany, Cyprus, United Kingdom, United States, Greece |
| Κώστας, Ντίνος, Κωνσταντίνος | Greece |
| Константинос | Russia, Ukraine, Bulgaria |
| Костас | Russia, Belarus, Bulgaria, Ukraine, Lithuania |
C-Tin, Constantijn, Constantin, Constantine, Constantino, Constantinus, Constantios, Constantí, Costakis, Costantinos, Costas, Costis, Cottas, Dinos, Konstantin, Konstantinas, Konstantios, Konstantis, Konstanty, Konstantyn, Konstantín, Konstantínos, Kosta, Kostakis, Kostas, Kostiantyn, Kostis, Kostjantyn, Kostyantyn, Kosztasz, Kottas, Kóstas, Kōnstantinos, Ntinos, Takis, Κονσταντινος, Κωνσταντής, Κωνσταντίνοσ, Κωστάκης, Κωστής, Τάκης, Канстанцін, Константи, Константий, Константин, Константино, Константы, Константій, Константінос, Констанций,
Konstantinos is also a name for the fictitious and mythical characters: Kostas Charitos , the fictional cop character of writer Petros Markaris and Ntinos Pongis , the theatrical character in the play "Steering wheel in the love", Love's steering wheel.
| konstantinos lardys Byzantine emperor, TR (b. 501) |
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konstantinos vi Byzantine Emperor (771-802) (b. 771) |
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| konstantinos podopagouros (b. 800) |
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| konstantinos kontomytes Byzantine general and noble (b. 850) |
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| konstantinos cephalas Byzantine scholar (b. 900) |
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| konstantinos doukas Byzantine general (b. 900) |
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| konstantinos skleros (b. 935) |
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konstantinos dalassenos Byzantine aristocrat and general (b. 1000) |
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| konstantinos diogenes Byzantine general (b. 1000) |
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| konstantinos opos Byzantine general and aristocrat (b. 1001) |
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| konstantinos choirosphaktes Byzantine diplomat (b. 1001) |
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| konstantinos diogenes Byzantine noble man, TR (b. 1001) |
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| konstantinos diogenes Byzantine pretender (b. 1100) |
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| konstantinos doukas Byzantine general and governor (b. 1101) |
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| konstantinos maliasenos (b. 1101) |
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