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Family name Джоя (Gioia , Джоя , Gioja ) , worldwide, is a common last name. The family name Джоя is characteristic of Italy, where it is quite a common surname, Uruguay, where it is quite a rare surname, and Argentina. Not in comparison with a country's population, it is the most numerous in Italy, the United States, and Argentina. Much less frequently, Джоя is the forename as well as the last name.