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In all the world, Rayka (Райка , Rayka ) is quite a common primarily female, but scarcely male given name. The first name Rayka is habitual in Bulgaria, where it is quite a common feminine name, Kyrgyzstan, where it is a rare girly name, and Kazakhstan. Not in comparison with a country's population, it is commonest in Bulgaria, Brazil, and Indonesia. Likewise, Rayka is the last name as well as the forename.
Rayka is also a name for the fictitious and mythical characters: Raisa , the fictional character from the television series Arrow.