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All over the world, Gayka (Гайка , Gayka ) is a rare predominantly feminine, but scarcely male first name. The first name Gayka is characteristic of Bulgaria, where it is a rare girly name, Russia, where it is an extremely rare primarily male, but very seldom female name, and India, where it is an extremely rare girly name. Also, Gayka is the last name as well as the forename.
Gayka is also a name for the fictitious and mythical characters: Heiko Anrath , the fictional character from the German science fiction novel series Perry Rhodan.