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Around the world, Оливиеро (Oliviero , Оливиеро ) is quite a common boy's forename. The forename Оливиеро is habitual in Italy, where it is quite a common male name, Croatia, where it is a rare masculine name, and Switzerland. Not in comparison with a country's population, it is commonest in Italy, Germany, and France. Likewise, Оливиеро is the last name as well as the forename.
Оливиеро is also a name for the fictitious and mythical characters: Oliviero , the operatic character in the opera Adelia by Gaetano Donizetti; count of Fienna; Oliviero , the operatic character in the opera Gianni di Parigi and Oliviero , the operatic character in the opera Jean de Paris (Boieldieu).