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Across the world, Adio (Adio , Adieu , Addio ) is a common gender-neutral first name. The first name Adio is habitual in Sub-Saharan Africa, particularly Nigeria, where it is quite a common unisex name, the Democratic Republic of the Congo, where it is a rare masculine name, and Ethiopia, where it is a rare unisex name. Also, Adio is the last name as well as the forename.