Surname Nikolayi (Николаыи , Nikolayi ) , worldwide, is an extremely rare cognomen. Predominantly, Nikolayi is the forename as well as the last name.
Николайи, Николаї, and Ніколаї
Frolov
, Nikolayi 
) , worldwide, is an extremely rare cognomen. Predominantly, Nikolayi is the forename as well as the last name.