Surname Mikalay (Mikalay 
, Микалаы ) , around the world, is an extremely rare last name. The last name Mikalay is habitual in Latin America and the Caribbean, particularly Brazil, where it is an extremely rare surname. Much more frequently, Mikalay is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mikalay | Russia, Brazil, United States, Belarus |
| Микалаы | Russia |
Mikalai, Mikalaj, Mikałaj, Mikola, Mikołaj, Mykola, Mykoła, Nicholas, Nicolas, Nikolai, Nikolai, Nikolaj, Nikolaj, Nikolass, Nikolay, Nikolaï, Nikołaj, Nyikolaj, Νίκολας, Νικόλαος, Νικόλας, Коля, Микалай, Микола, Миколай, Мыкола, Мікалай, Мікола, Никола, Николаев, Николай, Николас, Николя, Нікалас, Ніколай, Ніколас, ניקולאי, ניקולס, نيقولا, نيقولاي, نيكولاس, نيكولاي, ნიკოლასი, ニコラ, ニコライ, ニコラウス, ニコラス, 尼古拉, 尼古拉斯, 尼古拉耶夫, and 니콜라