Surname Ryskova (Ryskova 
, Рыськова 
, Рыскова 
) , in the entire world, is quite a rare last name. The cognomen Ryskova is habitual in Czechia, where it is quite a rare surname, Slovakia, and Slovenia, where it is a rare surname. Not in comparison with a country's population, it is commonest in Eastern Europe, particularly Russia, Czechia, and Slovakia.