In all the world, Nykolayev (Nykolayev , Николаиев ) is an extremely rare male first name. More prevalently, Nykolayev is the last name as well as the forename.
Николаєв, Ныколаев, and Ныколаиев
Pareja
, Николаиев 
) is an extremely rare male first name. More prevalently, Nykolayev is the last name as well as the forename.