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Cognomen Filin (Filin
, Филин
, Філін
) , around the world, is a common family name. The surname Filin is habitual in Eastern Europe, particularly Russia, where it is quite a common surname, Slovakia, where it is quite a rare surname, and Ukraine. Not in comparison with a country's population, the name is most common in Russia, Ukraine, and Kazakhstan. Much less frequently, Filin is the forename as well as the last name.