Cognomen Nikolái (Николай 
, Nikolái 
) , around the globe, is a common family name. The cognomen Nikolái is habitual in Kyrgyzstan, where it is a common surname, Bulgaria, where it is quite a common surname, and Armenia (explore the name in all countries). Measured by absolute frequency, it is the most numerous in Russia, Kyrgyzstan, and Bulgaria. Much more frequently, Nikolái is the forename as well as the last name.