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Across the world, Tíu (Tio , Tiu , Tíu ) is a common gender-neutral first name. The given name Tíu is characteristic of Indonesia, where it is quite a rare epicene name, Nigeria, where it is quite a rare masculine name, and Jamaica, where it is a rare male name. Not in comparison with a country's population, the name is most common in Indonesia, Nigeria, and India. Likewise, Tíu is the last name as well as the forename.
Tíu is also a name for the fictitious and mythical characters: Tio Pep ; Tio de la Porra ; Tio Holtzman ; Tio Barnabé and Tio Mut , the character in Matèria de Bretanya, among other works.