Surname Oneto (Oneto 
) , all around the world, is quite a rare family name. The cognomen Oneto is habitual in Paraguay, where it is quite a rare surname, Argentina, and Italy. In absolute terms, this name is the most popular in Italy, Argentina, and the United States. Much less frequently, Oneto is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Oneto | Italy, United States, Peru, Indonesia, Argentina |
| emanuele moncada oneto IT (b. 1740) |
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| carmelo moncada oneto IT (b. 1743) |
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| donna eleonora oneto, dei duchi di sperlinga 3 Mar 1757 Catania - 21 Jan 1831 Catania (b. 1757) |
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| giacomo oneto Italian private banker and politician, IT (b. 1790) |
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| antonio oneto Argentinian military personnel (1826-1885), AR (b. 1826) |
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| carlos oneto y viana Uruguayan politician and lawyer, UY (b. 1877) |
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josé manuel oneto revuelta Spanish journalist, ES (b. 1942) |
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bettina oneto Peruvian comedian, PE (b. 1957) |
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isabel oneto Portuguese politician, PT (b. 1959) |
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| cecilia ravera oneto Italian painter (1918-2002), IT (b. 1918) |
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vanina oneto field hockey player, AR (b. 1973) |
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shantall young oneto Canadian-Peruvian singer, PE (b. 1977) |
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| carlos oneto Peruvian actor (1929-2014), PE (b. 1929) |
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marco oneto Chilean handball player, CL (b. 1982) |
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célia oneto bensaid French pianist, FR (b. 1992) |
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