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Surname Pío (Pius , Pio , Pío ) , around the world, is a widespread cognomen. The cognomen Pío is characteristic of Sub-Saharan Africa, particularly Tanzania, where it is quite a common surname, Nigeria, and Cabo Verde (explore the name in all countries). Not in comparison with a country's population, it most frequently occurs in Nigeria, Tanzania, and Brazil. Likewise, Pío is the forename as well as the last name.