Surname Клан (Klan 
, Клан 
, Klahn 
) , all around the world, is quite a rare family name. The last name Клан is characteristic of Czechia, where it is quite a rare surname, Germany, and Denmark. Measured by absolute frequency, it most frequently occurs in Germany, the United States, and Czechia. Very seldom, Клан is the forename as well as the last name.