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Globally, Otero (Oto , Otero , Altus ) is a common predominantly boy's, but very seldom girly first name. The forename Otero is characteristic of Slovakia, where it is quite a rare boy's name, Czechia, and Croatia. Not in comparison with a country's population, this name is the most popular in Nigeria, Indonesia, and Brazil. More prevalently, Otero is the last name as well as the forename.
Otero is also a name for the fictitious and mythical characters: Oto Kogane , the fictional character from Dropout Idol Fruit Tart, Ochikobore Fruit Tart and Oto .