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Throughout the world, Dayk (Dayk , دایک , Дайк ) is quite a rare largely girly, but infrequently boy's first name. The first name Dayk is characteristic of Western Asia, particularly Iraq, where it is quite a rare dominantly girly, but uncommonly boy's name, and Turkey, where it is a very rare masculine name. Very seldom, Dayk is the last name as well as the forename.
Dayk is also a name for the fictitious and mythical characters: .