Family name Kostas (Kostas 
, Κώστας , Костас 
, and others...) , throughout the world, is quite a common last name. The surname Kostas is characteristic of Greece, where it is quite a common surname, Cyprus, where it is quite a rare surname, and Bulgaria, where it is a rare surname. Not in comparison with a country's population, it most frequently occurs in Greece, the United States, and Australia. More prevalently, Kostas is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kostas | Germany, Cyprus, United States, Greece, Lithuania |
| Κώστας | Greece |
| Костас | Kazakhstan, Russia, Belarus, Bulgaria, Lithuania |
| קוסטאס | Israel |
C-Tin, Constantijn, Constantin, Constantine, Constantino, Constantinus, Constantios, Constantí, Costakis, Costantinos, Costas, Costis, Cottas, Dinos, Konstantin, Konstantinas, Konstantinos, Konstantios, Konstantis, Konstanty, Konstantyn, Konstantín, Konstantínos, Kosta, Kostakis, Kostaś, Kostiantyn, Kostis, Kostjantyn, Kostyantyn, Kosztasz, Kottas, Koçtaç, Kóstas, Kôtâ, Kōstas, Ntinos, Takis, Κοστας, Κοστασ, Κωνσταντής, Κωνσταντίνος, Κωστάκης, Κωστής, Κωστας, Ντίνος, Τάκης, Канстанцін, Константи, Константий, Константин, Константино, Константинос, Константы, Константій, Константінос, Констанций, Коста, Костась, Костен, Костя, Костянтин, קונסטנטין, قسطنطين, كونستانتين, კონსტანტინე, and コスタ
| gabriele kostas DE (b. 1955) |
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| gabriele kostas DE (b. 1955) |
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| demetres kostas researcher |
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| emily t kostas researcher |
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Pap, Nikolaidis, Karagiannis, Kostopoulos, Petropoulos, Dimitriadis, Theodoridis, Sidiropoulos, Stavropoulos, Antonopoulos, Konstantinou, Papadopoulos, Papanikolaou, Papageorgiou, Giannopoulos, Nikolopoulos, Papadimitriou, Athanasopoulos, Konstantinidis, Giannakopoulos, Anagnostopoulos, Konstantopoulos, Georgiadis, Panagiotopoulos, Dimopoulos, Oikonomou, Kosta, Papas, Markou, Makris, Sarris, Pappas, Petrou, Alexiou, Vlachos, Ioannou, Mavridis, Antoniou, Kostakis, Kritikos, Georgiou, Nikolaou, Papadakis, Dimitriou, Lazaridis, Theodorou, Ioannidis, Antoniadis, and Papakonstantinou