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Surname Stefka (Stefka , Стефка , סטפקה ) , in the entire world, is quite a rare last name. The last name Stefka is habitual in Bulgaria, where it is quite a common surname, North Macedonia, where it is quite a rare surname, and Slovenia. In absolute terms, it is the most numerous in Bulgaria, Czechia, and the United States. More frequently, Stefka is the forename as well as the last name.