Family name Kostoska (Kostoska 
) , worldwide, is a rare surname. The surname Kostoska is characteristic of North Macedonia, where it is quite a common surname, Australia, where it is a very rare surname, and Germany, where it is an extremely rare surname. Much less frequently, Kostoska is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kostoska | Germany, North Macedonia, United States, Australia |
Ms, Martina, Mirjana, Snezana, Biljana, Rafaela, Ristana, Daniela, Dobrila, Dragica, Gordana, Tatjana, Natasha, Emilija, Olivera, Zaklina, Svetlana, Katerina, Katarina, Kristina, Eleonora, Hristina, Natasa, Tamara, Jovana, Dusica, Ana, Ema, Mare, Maja, Lili, Nina, Vera, Matea, Sonja, Anita, Cvetanche, Aneta, Elena, Emili, Vesna, Irena, Marina, Marija, Mimoza, Simona, Suzana, Angela, Tanja, and Viktorija