All over the world, Koshchak (Koshchak , Кощак ) is an extremely rare unknown gender first name. Much more frequently, Koshchak is the last name as well as the forename.
Кошчак, and Кощчак
Artur, Viktor, Eleonora, and Yaroslava
, Кощак 
) is an extremely rare unknown gender first name. Much more frequently, Koshchak is the last name as well as the forename.