Last name Κωνσταντόπουλος (Konstantopoulos 
, Κωνσταντόπουλος , Constantopoulos 
) , in the world, is quite a common cognomen. The cognomen Κωνσταντόπουλος is habitual in Greece, where it is quite a common surname, Cyprus, where it is quite a rare surname, and Australia, where it is a rare surname. Not in comparison with a country's population, this name is the most popular in Greece, the United States, and Australia.
| VARIANT | COUNTRY |
|---|---|
| Konstantopoulos | Greece, Canada, United States, Cyprus, Australia |
| Κωνσταντόπουλος | Greece |
| Constantopoulos | Greece, Canada, United Kingdom, United States, Australia |
Konstadopoulos, Konstadopulos, Konstandopoulos, Konstantopoulou, and Konstantopulos
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κωνσταντίνος κωνσταντόπουλος Greek politician (1832-1910), GR (b. 1832) |
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| κωνσταντίνος κωνσταντόπουλος Greek archaeologist, GR (b. 1874) |
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νίκος κωνσταντόπουλος Greek politician, GR (b. 1942) |
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| νικόλαος κωνσταντόπουλος GR (b. 1884) |
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γεώργιος κωνσταντόπουλος Greek politician and physician, GR (b. 1958) |
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| σάββας κωνσταντόπουλος Greek publisher and journalist (1910-1981), GR (b. 1910) |
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| δημήτριος κωνσταντόπουλος prof., Aristotelian Univ. of Thessaloniki; dir. Inst. of Internat. Public Law and Internat. Rel. [of Thessaloniki], GR (b. 1916) |
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| δημήτριος κωνσταντόπουλος Greek university professor, GR (b. 1917) |
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| σπύρος κωνσταντόπουλος Greek actor, GR (b. 1925) |
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δημήτρης κωνσταντόπουλος Greek association football player, GR (b. 1978) |
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| χρήστος κωνσταντόπουλος Greek actor, GR (b. 1940) |
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| χρήστος κωνσταντόπουλος Greek association football player, GR (b. 1953) |
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| δημήτρης κωνσταντόπουλος Greek politician, GR (b. 1953) |
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| γιώργος κωνσταντόπουλος Greek association football player, GR (b. 1964) |
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| διονύσης κωνσταντόπουλος Greek architect and comics artist, GR (b. 1965) |
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