Around the world, Kostiouk (Костюк , Kostiouk ) is an extremely rare epicene given name. Predominantly, Kostiouk is the last name as well as the forename.
Костиоук, Костиук, Костйук, and Косьтюк
Mr, Alex, Anna, Vera, Tomas, Melisa, Susana, Artiom, Leonid, Mikhail, Alessia, Tetyana, Natalia, and Valeria
, Kostiouk 
) is an extremely rare epicene given name. Predominantly, Kostiouk is the last name as well as the forename.