Cognomen Νικολάου (Nicolau 
, Nikolaou 
, Nicolaou ) , across the world, is a common last name. The family name Νικολάου is characteristic of Cyprus, where it is a prevalent surname, Greece, where it is a common surname, and Portugal, where it is quite a common surname (explore the name in all countries). Measured by absolute frequency, the name is most common in Brazil, Greece, and Cyprus. Very seldom, Νικολάου is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Nicolau | Brazil, Cyprus, Angola, Greece, Romania |
| Nikolaou, Nicolaou | Brazil, Cyprus, Greece, Romania, Spain |
| Νικολάου | Greece |
Miklos, Miklós, Mikola, Mikołaj, Mikuláš, Mykola, Mykoła, Niccolò, Nicholas, Nicolaas, Nicolae, Nicolas, Nicolás, Nicos, Niels, Niko, Nikolai, Nikolai, Nikolaj, Nikolaj, Nikolajus, Nikolao, Nikolaos, Nikolas, Nikolass, Nikolau, Nikolaus, Nikolay, Nikolaz, Nikolaï, Nikos, Nikołaj, Nils, Nyikolaj, Νίκολας, Νίκος, Νικόλαος, Νικόλας, Коля, Миклош, Микола, Миколай, Микулаш, Мыкола, Мікалай, Міклаш, Мікола, Никколо, Нико, Никола, Николае, Николаев, Николаз, Николай, Николаос, Николас, Николау, Николаус, Николаэ, Николо, Николя, Никос, Нилс, Нильс, Нікалас, Нікало, Ніколай, Ніколас, Нільс, נילס, ניקולאו, ניקולאי, ניקולס, نيقولا, نيقولاي, نيكوس, نيكولاس, نيكولاي, نيلز, نيلس, ნიკოლასი, ニコ, ニコラ, ニコライ, ニコラウス, ニコラス, ニルス, 尼克斯, 尼古拉, 尼古拉斯, 尼古拉耶夫, 尼尔斯, 尼柯, 尼科, and 니콜라
| νικολάου ρίτζου Greek painter, GR (b. 1440) |
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| δήμος νικολάου Greek soldier, GR (b. 1790) |
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| αδαμάντιος νικολάου Greek soldier and politician, GR (b. 1790) |
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| αλέξιος νικολάου Greek soldier, GR (b. 1797) |
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| σταύρος νικολάου GR (b. 1800) |
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κυριάκος κώστα νικολάου Cypriot-American chemist, US (b. 1946) |
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λάκης νικολάου Greek footballer, GR (b. 1949) |
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σπύρος νικολάου Greek politician, GR (b. 1950) |
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νίκος νικολάου Greek actor, GR (b. 1956) |
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| νίκος νικολάου Greek painter and sculptor (1909-1986), GR (b. 1909) |
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| αμβρόσιος νικολάου Greek metropolitan (1917-1984), GR (b. 1917) |
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| νικόλαος νικολάου Greek rower, GR (b. 1925) |
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| καίτη νικολάου Greek naive painter, GR (b. 1926) |
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| κωνσταντίνος νικολάου politician, GR (b. 1933) |
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μάριος νικολάου Cypriot association football player, CY (b. 1983) |
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Δήμητρα, Ελένη, Άντρεα, Μαρία, Μιχάλης, Μάριος, Ανδρέας, Αλέξανδρος, Αλέξης, Γιώργος, Γεωργία, Βασίλης, Βαλάντω, Νικόλα, Σωτήρης, Μαρίνα, Νικόλας, Ευαγγελία, Χριστίνα, Φωτεινή, Αντρέας, Μαργαρίτα, Νίκος, Γιώτα, Δημήτρης, Κώστας, Δώρα, Εύα, Ηλίας, Άγγελος, Κέλλυ, Μάκης, Νίκη, Ειρήνη, Ιωάννα, Γεώργιος, Αγγελική, Βάσω, Έλενα, Οδυσσέας, Άννα, Σοφία, Σάββας, Στέλιος, Στέλλα, Χαρά, Χρήστος, Κλειώ, Νεφέλη, and Αριστείδης