nicolai

Nicolai is a masculine given name of European origin, most commonly found in Denmark and Norway as a form of Nicholas. The name derives from the Greek Nikolaos, meaning "victory of the people."

Variants include Nikolai, Nikolay, Nicolaj, and Nicolai. In different languages the name appears as Nikolai (Russian), Nikolay (Bulgarian), and Nicolò or Nicola in Italian contexts; in Dutch and German contexts it is often written Nicolai.

In addition to its use as a given name, Nicolai may appear as a surname in Dutch and German-speaking areas, reflecting patronymic origins.

The name has been borne by figures in science, medicine, sports and the arts across Northern Europe and beyond, illustrating its long-standing role in European naming traditions.