Last name Douchan (Душан 
, Douchan 
) , in all the world, is a rare cognomen. The last name Douchan is habitual in Serbia, where it is quite a rare surname, Bulgaria, where it is a rare surname, and Kazakhstan, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in Serbia, Bulgaria, and Germany. Much more prevalently, Douchan is the forename as well as the last name.