Surname Vargr (Varg 
, Warg 
, Vargr ) , around the globe, is quite a rare family name. The last name Vargr is habitual in Sweden, where it is quite a rare surname, Estonia, where it is a rare surname, and Slovakia. In absolute terms, it is commonest in Sweden, Germany, and the United States. Very seldom, Vargr is the forename as well as the last name.