Family name קוסטקה (קוסטקה 
, Kosztka 
) , globally, is a rare last name. The last name קוסטקה is characteristic of Hungary, where it is quite a rare surname, Israel, where it is a very rare surname, and Australia.
| VARIANT | COUNTRY |
|---|---|
| קוסטקה | Israel |
| Kosztka | Hungary, Australia |