Surname Крайчек (Крайчек 
, Krajicek 
, Krajíček 
) , globally, is quite a rare family name. The surname Крайчек is habitual in Czechia, where it is quite a common surname, Slovakia, where it is quite a rare surname, and Austria, where it is a rare surname. Measured by absolute frequency, it most frequently occurs in Czechia, the United States, and Slovakia.