Last name Сиска (Siska 
, Ziska , Сиска 
) , globally, is a common family name. The last name Сиска is habitual in Eastern Europe, particularly Slovakia, where it is quite a common surname, Czechia, and Hungary. Not in comparison with a country's population, it is the most numerous in Indonesia, Slovakia, and Czechia. More frequently, Сиска is the forename as well as the last name.