Around the world, Пьеро (Piero 
, Pierrot 
, Пьеро 
) is a widespread masculine forename. The first name Пьеро is characteristic of Italy, where it is a common masculine name, San Marino, where it is a common gender-neutral name, and Peru, where it is quite a rare boy's name. Not in comparison with a country's population, the name is most common in Italy, Peru, and France. Very seldom, Пьеро is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Piero | Italy, Indonesia, United States, Peru, France |
| Pierrot | Italy, Indonesia, Peru, Democratic Republic of the Congo, France |
| Пьеро | Russia, Belarus |
| Pierreux | Belgium, United States, Spain, France |
Kepa, Peder, Pedro, Pedru, Peer, Peeter, Peetu, Pehr, Per, Pere, Pero, Peru, Petar, Petelo, Peter, Peters, Petko, Petr, Petras, Petri, Petro, Petros, Petru, Petrus, Petter, Petteri, Petur, Petyr, Piatro, Pierre, Pieru, Piet, Pietari, Pieter, Pietro, Piotr, Piters, Pjeter, Pjetur, Pjetër, Pjotr, Pyero, Pyotr, Péter, Pétur, Pēteris, Πέτρος, Πέτρου, Πετρος, П'Ер,
Пьеро is also a name for the fictitious and mythical characters: Pierrot , the stock character of pantomime and Commedia dell'Arte, The Golden Key, or the Adventures of Buratino; Pierrot , the puppet created by Richard Morin, The Star Keeper; Piero , the operatic character in the opera Pia de’ Tolomei, Pia de' Tolomei; Pierrot Van den Bossche , character in Familie and Pierrot , the musical character in the musical I'll Say She Is by Tom Johnstone, among other works.