>
In the entire world, Oliviero (Oliviero , Оливиеро ) is quite a common boy's first name. The forename Oliviero is habitual in Italy, where it is quite a common masculine name, Croatia, where it is a rare boy's name, and Switzerland. Not in comparison with a country's population, it is the most numerous in Italy, Germany, and France. Likewise, Oliviero is the last name as well as the forename.
Oliviero 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).