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Family name Гайя (Gaia , Gayya , Гайя ) , around the globe, is a common cognomen. The cognomen Гайя is characteristic of Brazil, where it is quite a rare surname, Italy, and Portugal. Measured by absolute frequency, it is commonest in Brazil, Italy, and India. Also, Гайя is the forename as well as the last name.
Озоліна, Бойкова, Зайченко, Салахадинов, and Григоренко