In the entire world, Николайс (Nikolajs 
, Nikolais 
, Николайс 
) is a rare male first name. The forename Николайс is habitual in Latvia, where it is quite a common boy's name, Lithuania, where it is quite a rare boy's name, and Greece, where it is a rare boy's name. In absolute terms, the name is most common in Latvia, Greece, and the United Kingdom. Much less frequently, Николайс is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Nikolajs | Lithuania, United Kingdom, Latvia, Romania, Spain |
| Nikolais | Greece, Albania, United Kingdom, China, United States |
| Николайс | Ukraine, Russia |
| Nikolays | Brazil, Venezuela, United States |
Miklos, Miklós, Mikola, Mikołaj, Mykola, Mykoła, Niccolò, Nicholas, Nicolaas, Nicolaes, Nicolas, Nicolo, Nicolás, Nicolò, Nicos, Niels, Nikolai, Nikolai, Nikolaj, Nikolaj, Nikolaos, Nikolass, Nikolaus, Nikolay, Nikolaz, Nikolaï, Nikos, Nikołaj, Nils, Nyikolaj, Νίκολας, Νίκος, Νικόλαος, Νικόλας, Коля, Миклош, Микола, Миколай, Мыкола, Мікалай, Міклаш, Мікола, Никколо, Никола, Николаев, Николаз, Николай, Николаос, Николас, Николаус, Николо,
Николайс 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.
| мазурс, николайс basketball player (1980-), LV (b. 1980) |
|
Кива, Зайацс, Белуха, Гусевс, Глушаков, Путрашевицс, and Долгополовс