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Family name Ayaka (Ayaka , アヤカ , Аяка ) , in all the world, is a widespread cognomen. The surname Ayaka is characteristic of Japan, where it is a common surname, the Democratic Republic of the Congo, where it is a rare surname, and Kenya. Measured by absolute frequency, it most frequently occurs in Japan, Nigeria, and the Democratic Republic of the Congo. Much less frequently, Ayaka is the forename as well as the last name.