Around the globe, Миколай (Mikołaj 
, Mikolaj 
, Миколай 
, among others...) is a common male forename. The given name Миколай is habitual in Poland, where it is quite a common boy's name, Ukraine, where it is quite a rare boy's name, and Ireland. In absolute terms, the name is most common in Poland, Ukraine, and the United Kingdom. Also, Миколай is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Mikołaj | Germany, Sweden, United Kingdom, United States, Poland |
| Mikolaj | Germany, Croatia, United States, Poland, Slovakia |
| Миколай | Armenia, Russia, Belarus, Ukraine, Lithuania |
| Mikolay | Germany, United Kingdom, Hungary, United States, Poland |
| Mikolai | Germany, Hungary, United States, Brazil, Slovakia |
Mikalai, Mikalaj, Mikalay, Mikalojus, Mikałaj, Miklavž, Miklos, Miklós, Mikola, Mikuláš, Mykola, Mykolaj, Mykoła, Niccolò, Nicholas, Nickel, Nicolaas, Nicolae, Nicolaes, Nicolao, Nicolas, Nicolau, Nicolaus, Nicolay, Nicolo, Nicolás, Nicolò, Nicos, Niels, Nikola, Nikolai, Nikolai, Nikolaj, Nikolaj, Nikolajs, Nikolajus, Nikolao, Nikolaos, Nikolas, Nikolass, Nikolaus, Nikolay, Nikolaz, Nikolaï, Nikos, Nikołaj, Nils, Nyikolaj, Νίκολας, Νίκος, Νικολάου,
Миколай is also a popular name for the fictitious and mythical characters: Nicholai Zinoviev , the fictional character from the video game series Resident Evil, Resident Evil 3; Nikolai Rostov , the fictional character from War and Peace; Prince Nikolay Bolkonsky , the father of Prince Andrey Bolkonsky, War and Peace; Nikolai Sergueych Ikhmenev , the character from Dostoyevsky's Humiliated and Insulted and Nikolai Orelov , the Assassin’s Creed character, Assassin's Creed, and in many other works.
| миколай ходецький UA (b. 1460) |
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семп-шажиньский, миколай Polish poet, UA (b. 1550) |
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| миколай з мостиськ UA (b. 1559) |
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| миколай кросновський UA (b. 1590) |
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зибликевич, миколай Austrian member of Austrian empire council, educator, lawyer and regional mayor (1823-1887), UA (b. 1823) |
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| миколай анджей городиський politician, UA (b. 1773) |
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товт миколай Slovak Greek Catholic bishop, UA (b. 1833) |
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| нападиевич, миколай UA (b. 1779) |
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| миколай баворовський UA (b. 1796) |
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| миколай антоневич-болоз UA (b. 1801) |
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миколай будзановський UA (b. 1861) |
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юристовский, миколай Polish diplomat, UA (b. 1872) |
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| миколай ружинський Kozak's hetman |
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| миколай красицький Roman Catholic bishop, UA |
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| миколай іскрівський UA |
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Ткач, Колесник, Ковальов, Кузнецов, Михайлов, Гончаров, Панченко, Петренко, Савченко, Степанов, Ткаченко, Шевченко, Колесніков, Ковальчук, Коваленко, Кузьменко, Кравченко, Макаренко, Василенко, Сидоренко, Тарасенко, Нестеренко, Воробйов, Федоров, Руденко, Хоменко, Мороз, Бойко, Попов, Козлов, Коваль, Маслов, Волков, Зайцев, Сердюк, Шульга, Бондаренко, Яценко, Єгоров, Комаров, Мельник, Антонов, Поляков, Новіков, Лисенко, Олійник, Соколов, Смирнов, Іванов, and Васильченко