Family name Κωστάκης (Kostakis 
, Costakis 
, Costachi 
) , in the world, is quite a rare surname. The surname Κωστάκης is characteristic of Greece, where it is quite a common surname, Moldova, where it is quite a rare surname, and Cyprus. In absolute terms, it most frequently occurs in Greece, the United States, and Romania. Much less frequently, Κωστάκης is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kostakis | Australia, Greece, Cyprus, United States, United Kingdom |
| Costakis | Germany, Cyprus, United States, United Kingdom, South Africa |
| Costachi | Italy, Moldova, United States, United Kingdom, Romania |
| Κωστάκης | Greece |
Constantios, Costache, Costantinos, Costas, Costis, Cottas, Dinos, Konstantinos, Konstantios, Konstantis, Konstantínos, Kostakes, Kostaki, Kostas, Kostis, Kosztasz, Kottas, Kóstas, Ntinos, Takis, Κωνσταντής, Κωνσταντίνος, Κωστής, Κώστας, Ντίνος, Τάκης, Константий, Константинос, Константінос, Констанций, Костаки, Костас, קונסטנטין, قسطنطين, and كوستاس
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παντολέων κωστάκης Greek politician, GR (b. 1826) |
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κωστάκης ανθόπουλος πασάς Ottoman academic and politician, TR (b. 1835) |
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| κωνσταντίνος φ. κωστάκης Greek politician, GR (b. 1810) |
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| θανάσης κωστάκης Greek linguist, GR (b. 1907) |
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| θανάσης π. κωστάκης 1908-2007 (b. 1908) |
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| γεώργιος κωστάκης Collector of Russia art, GR (b. 1913) |
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| νικόλαος κωστάκης Greek politician, GR (b. 1921) |
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κωστάκης αρτυματάς Cypriot footballer, CY (b. 1993) |
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| κωστάκης κουτσοκούμνης president of the Cypriot Football Association (1956-2018), CY (b. 1956) |
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| κωστάκης κωνσταντίνου Cypriot actor, CY (b. 1957) |
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| κωστάκης κωνσταντίνου Cypriot footballer, CY (b. 1968) |
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| κωστάκης αντωνιάδης association football player, CY |
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| κωστάκης αυγουστή CY |
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| χάρης κωστάκης Greek footballer, GR (b. 1990) |
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| κωστάκης τίγγης CY |
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