Cognomen Konstantinou (Konstantinou 
, Константину 
, קונסטנטינו 
) , around the globe, is a common surname. The last name Konstantinou is habitual in Cyprus, where it is a prevalent surname, Greece, where it is quite a common surname, and Bulgaria, where it is a rare surname. Measured by absolute frequency, it is the most numerous in Cyprus, Greece, and Germany.
| VARIANT | COUNTRY |
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| Konstantinou | Germany, Australia, Greece, Cyprus, United States |
| Константину | Ukraine, Russia |
| קונסטנטינו | Israel |
| Κωνσταντίνου | Greece |
Constantinou, Konstantinou, Constantinou, Константиноу, Константіноу, and Константіну
| silvia konstantinou journalist and writer, AT (b. 1952) |
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| ioannis konstantinou researcher |
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| georgios konstantinou researcher |
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| evangelos konstantinou researcher |
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| pinelopi konstantinou researcher |
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| a konstantinou researcher |
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| george n konstantinou researcher |
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| dimitrios konstantinou researcher |
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| maria konstantinou Ph.D. University of Southampton 2013 |
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| eleni k konstantinou researcher |
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| konstantinos konstantinou researcher |
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| georgia konstantinou researcher ORCID ID = 0000-0001-7157-1001 |
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| kika konstantinou researcher |
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| nikolaos konstantinou researcher |
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| panagiotis konstantinou researcher |
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