Family name Хага (Haga 
, Хага 
) , in the world, is a common cognomen. The cognomen Хага is habitual in Norway, where it is quite a common surname, Hungary, where it is quite a rare surname, and Finland. Measured by absolute frequency, the name is most common in Norway, the United States, and Egypt. Very seldom, Хага is the forename as well as the last name.