Surname Гашек (Гашек 
, Gachek 
, Gashek ) , around the world, is a rare last name. The last name Гашек is habitual in Czechia, where it is quite a rare surname, Croatia, and Kazakhstan, where it is a rare surname. Measured by absolute frequency, the name is most common in Czechia, Croatia, and Russia. Much less frequently, Гашек is the forename as well as the last name.