Cognomen Perkun (Perkun 
, Перкун 
) , in the world, is a rare family name. The family name Perkun is characteristic of Ukraine, where it is a rare surname, Belarus, and Germany, where it is a very rare surname. In absolute terms, it is commonest in Ukraine, Russia, and Germany. Very seldom, Perkun is the forename as well as the last name.