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Around the globe, Рајко (Rajko , Raiko , Рајко ) is quite a common principally boy's, but scarcely female first name. The given name Рајко is characteristic of Southern Europe, particularly Croatia, where it is quite a common boy's name, Montenegro, and Slovenia (explore the name in all countries). Measured by absolute frequency, this name is the most popular in Japan, Croatia, and Serbia. Much less frequently, Рајко is the last name as well as the forename.
Рајко is also a name for the fictitious and mythical characters: Рајко Божић .