Cognomen Zeni (Genie 
, Zeni , Génie 
) , all around the world, is a common surname. The cognomen Zeni is habitual in Italy, where it is quite a rare surname, North Macedonia, and Israel. Not in comparison with a country's population, the name is most common in Brazil, Italy, and Indonesia. More prevalently, Zeni is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Genie, Zeni | Italy, Philippines, United States, Brazil, Democratic Republic of the Congo |
| Génie | Algeria, Senegal, United States, France, Democratic Republic of the Congo |
| Зени | Armenia, Russia |
| doymus zeni Roman Catholic bishop (1662-1728) (b. 1662) |
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| bartolomeo zeni Italian painter (1730-1809), IT (b. 1730) |
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| domenico zeni Italian painter (1762-1819) (b. 1762) |
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| fortunato zeni (1819-1879), IT (b. 1819) |
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| pietro zeni tenor (1870-1932), IT (b. 1870) |
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vito zeni IT (b. 1922) |
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| luisa zeni Italian spy and writer, IT (b. 1896) |
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| anthony zeni American diplomat (1902-1981), US (b. 1902) |
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| giuseppe zeni Italian botanist (1912-2007), IT (b. 1912) |
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| albino zeni Brazilian physician (1917-2006), BR (b. 1917) |
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| marcelo roberto zeni politician from Brazil, BR (b. 1972) |
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| michele zeni figure skater |
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| valeria zeni researcher |
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| giovanni zeni researcher |
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| ana lúcia b zeni researcher (ORCID 0000-0002-9904-9861) |
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