Cognomen Джака (Xhaka 
, Джака 
) , all over the world, is quite a rare surname. The surname Джака is habitual in Albania, where it is quite a rare surname, Myanmar, where it is a rare surname, and Greece. Measured by absolute frequency, the name is most common in Myanmar, South Africa, and Albania. Very seldom, Джака is the forename as well as the last name.