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All around the world, Raika (Райка , Raika , Раика ) is quite a common largely girly, but seldom male first name. The first name Raika is characteristic of Bulgaria, where it is quite a common feminine name, Kyrgyzstan, where it is a rare female name, and Kazakhstan. In absolute terms, it is the most numerous in Bulgaria, India, and Brazil. Likewise, Raika is the last name as well as the forename.
Raika is also a name for the fictitious and mythical characters: Raisa , the fictional character from the television series Arrow.