Cognomen Piana (Piana 
, פיאנה 
, Пиана 
) , all over the world, is a common surname. The surname Piana is characteristic of Italy, where it is quite a common surname, Uruguay, where it is quite a rare surname, and Argentina. Not in comparison with a country's population, it is commonest in Italy, Brazil, and Argentina. Much less frequently, Piana is the forename as well as the last name.
| giovanni domenico piana Italian engineer, IT (b. 1708) |
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giuseppe ferdinando piana Italian painter (1864-1956), IT (b. 1864) |
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| agathe calvelli-adorno della piana (b. 1867) |
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| marco la piana Italian linguist, IT (b. 1883) |
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| pietro loro piana Textile company founder, IT (b. 1883) |
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| quintino piana IT (b. 1875) |
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darci piana Brazilian politician, BR (b. 1941) |
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calogero la piana Italian priest and theologian, IT (b. 1952) |
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| sebastián piana Argentinian musician and conductor, AR (b. 1903) |
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| remo piana Italian basketball player, IT (b. 1908) |
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| celestino piana Italian Franciscan friar (1911-1992), IT (b. 1911) |
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joseph la piana painter, US (b. 1966) |
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| teresio piana Italian association football player (1918-2001), IT (b. 1918) |
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| jack piana American basketball player, US (b. 1918) |
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carlo piana Italian lawyer, IT (b. 1968) |
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