Cognomen Piani (Piani 
, เปียโน 
) , in the entire world, is quite a rare last name. The last name Piani is habitual in Italy, where it is quite a rare surname, France, where it is a rare surname, and Uruguay. Not in comparison with a country's population, it is the most numerous in Italy, Brazil, and Indonesia. Very seldom, Piani is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Piani | Indonesia, Argentina, Brazil, France, Italy |
| เปียโน | Thailand |
| pietro piani Italian painter (1770-1841), IT (b. 1770) |
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| emilio piani Cuban artist, approximately 1812- (b. 1817) |
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orlando piani Italian bicycle racer (1893-1975), IT (b. 1893) |
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| guglielmo piani Italian archbishop, IT (b. 1875) |
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| ernesto piani (b. 1876) |
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lorenzo piani Italian actor, IT (b. 1944) |
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| alfredo piani Italian association football player, IT (b. 1903) |
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lorenzo piani Italian singer and songwriter (1955-2016), IT (b. 1955) |
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| dante piani Italian association football player (1921-2011), IT (b. 1921) |
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| olivier piani FR (b. 1954) |
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| stefano piani Italian screenwriter, IT (b. 1965) |
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| luciano piani researcher |
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| claudio piani Ph.D., atmospheric science, University of Washington |
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| roberto piani Italian architect, contemporary |
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| laurette piani researcher |
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Mr, Apit, Pina, Raul, Rosa, Rose, Rick, Rita, Ruth, Davi, Dina, Dora, Guga, Geny, Gino, Lais, Lina, Lino, Lisa, Luca, Luis, Luiz, Auda, Luan, Adir, Anne, Ms, Jo, May, Ana, Ann, Pia, Dia, Liz, Nur, Ira, Ugo, Mari, Mary, Mara, Sara, Siro, Susi, Alex, Alan, Aldo, Anna, Arli, and Jose