Surname Χατζηνικολάου (Χατζηνικολάου 
, Hadjinicolaou 
) , throughout the world, is a rare cognomen. The last name Χατζηνικολάου is characteristic of Cyprus, where it is quite a common surname, Greece, where it is a rare surname, and Latvia. In absolute terms, this name is the most popular in Cyprus, Greece, and Australia.
| VARIANT | COUNTRY |
|---|---|
| Χατζηνικολάου | Greece |
| Hadjinicolaou | Greece, Australia, Cyprus, United States, United Kingdom |
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νίκος χατζηνικολάου Greek journalist, GR (b. 1962) |
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| γεώργιος χατζηνικολάου Cypriot politician, CY (b. 1928) |
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όλγα χατζηνικολάου Greek basketball player, GR (b. 1981) |
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| παναγιώτης χατζηνικολάου Greek politician, GR (b. 1932) |
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| νικος χατζηνικολάου Art historian of Marxist-methodology and historian of visual ideology; El Greco scholar and Professor, El Greco Centre, Institute of Mediterranean Studies, Rethymnon, Crete, GR (b. 1938) |
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| γιάννης χατζηνικολάου Greek association football player, GR (b. 1965) |
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| βαγγέλης χατζηνικολάου Greek actor, playwright and director ( 1975-2020), GR (b. 1975) |
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| μαρία χατζηνικολάου Greek volleyball player, GR (b. 1978) |
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| παναγιώτης χατζηνικολάου Greek politician, GR |
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| δημοσθένης χατζηνικολάου Greek association football player, GR |
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| νίκος χατζηνικολάου Greek basketball player, GR |
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| γιώργος χατζηνικολάου Greek set designer and costume designer, GR |
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