Globally, קוסטקה (קוסטקה , Kosztka ) is an extremely rare unknown gender first name. Much more frequently, קוסטקה is the last name as well as the forename.
Costache
מיכאל, and ליג'יה
, Kosztka 
) is an extremely rare unknown gender first name. Much more frequently, קוסטקה is the last name as well as the forename.