Last name ヤスカ (Jaska 
, ヤスカ 
) , in the world, is quite a rare surname. The family name ヤスカ is habitual in Estonia, where it is quite a rare surname, Slovakia, and Latvia. In absolute terms, the name is most common in Japan, Pakistan, and Slovakia. Much less frequently, ヤスカ is the forename as well as the last name.