Cognomen Cornia (Cornia 
) , across the world, is quite a rare surname. The last name Cornia is characteristic of Italy, where it is quite a rare surname, Romania, where it is a rare surname, and Uruguay. In absolute terms, the name is most common in Italy, the United States, and Romania. Very seldom, Cornia is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Cornia | Brazil, Italy, United States, South Africa, Romania |
| antonio della cornia Italian painter (b. 1585) |
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| antonio mariani della cornia IT (b. 1584) |
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| fabio della cornia painter, Italy (1600-1643) (b. 1600) |
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| italo cornia Italian politician (1896-1963), IT (b. 1896) |
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giovanni andrea cornia Italian economist, IT (b. 1947) |
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| gary c. cornia American academic (b. 1948) |
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| ugo cornia Italian writer, IT (b. 1965) |
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| riccardo cornia researcher |
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| samuele cornia researcher |
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| andrea cornia researcher |
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| marcella cornia researcher |
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