Around the globe, Pier Antonio (Pier Antonio 
) is a rare male forename. The forename Pier Antonio is habitual in Italy, where it is a rare boy's name, and Peru, where it is a very rare masculine name. Very seldom, Pier Antonio is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Pier Antonio | Germany, Peru, Ecuador, Chile, Italy |
Pedro Antonio, Pedro António, Pedro Antônio, Pierantonio, Pietro Antonio, and ペドロ
| pier antonio guadagni (b. 1579) |
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| pier antonio capobianco Roman Catholic prelate who served as Bishop of Lacedonia from 1663 to 1672, IT (b. 1619) |
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