Around the globe, Сергийко (Сергийко ) is an extremely rare unknown gender first name. Much more prevalently, Сергийко is the last name as well as the forename.
Sergiiko, and Sergiyko
Олег, Роман, and Сергей
) is an extremely rare unknown gender first name. Much more prevalently, Сергийко is the last name as well as the forename.