All over the world, Kościak (Kościak ) is an extremely rare unknown gender first name. Much more frequently, Kościak is the last name as well as the forename.
Kosciak
Kuba, Agata, Kinga, Marcin, Adrian, Patryk, Wojtek, Andrzej, and Grzegorz
) is an extremely rare unknown gender first name. Much more frequently, Kościak is the last name as well as the forename.