Surname Κωστόπουλος (Kostopoulos 
, Κωστόπουλος ) , in the world, is quite a common family name. The surname Κωστόπουλος is characteristic of Greece, where it is quite a common surname, Cyprus, where it is quite a rare surname, and Australia, where it is a rare surname. Measured by absolute frequency, this name is the most popular in Greece, the United States, and Australia.
| VARIANT | COUNTRY |
|---|---|
| Kostopoulos | Germany, Australia, Greece, Canada, United States |
| Κωστόπουλος | Greece |
| αθανάσιος κωστόπουλος GR (b. 1801) |
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| σταύρος κωστόπουλος Greek politician, GR (b. 1900) |
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| αλέξανδρος κωστόπουλος Greek politician, GR (b. 1909) |
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σωτήρης κωστόπουλος Greek politician, GR |
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ζαχαρίας "ζακ" κωστόπουλος Greek LGBT activist, GR (b. 1985) |
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| γιάννης κωστόπουλος greek banker, GR (b. 1938) |
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| μήτσος κωστόπουλος Greek writer and politician, GR (b. 1942) |
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| νικόλαος κωστόπουλος ping pong athlete, GR (b. 1951) |
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| πέτρος κωστόπουλος Greek publisher, GR (b. 1954) |
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| χάρης κωστόπουλος Greek singer, GR (b. 1964) |
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| αλέξης κωστόπουλος Greek composer, GR (b. 1966) |
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| αχιλλέας κωστόπουλος Greek actor, GR |
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| μιχάλης κωστόπουλος Greek actor, GR |
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| γεώργιος κωστόπουλος Greek soldier, GR |
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| λάμπρος κωστόπουλος Greek actor and director, GR |
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