Cognomen Vacchiano (Vacchiano 
) , around the globe, is quite a rare surname. The surname Vacchiano is characteristic of Italy, where it is quite a rare surname, France, where it is a rare surname, and Argentina. Not in comparison with a country's population, it is commonest in Italy, the United States, and Brazil. Much less frequently, Vacchiano is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Vacchiano | Brazil, Italy, France, United States, Argentina |
| william vacchiano American trumpeter and trumpet instructor, US (b. 1912) |
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| domenico vacchiano Italian archbishop (1914-2001), IT (b. 1914) |
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marco vacchiano Italian volleyball player, IT (b. 1988) |
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| bruno vacchiano IT (b. 1933) |
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| giorgio vacchiano researcher |
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| emily vacchiano American actress, US |
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| marco vacchiano researcher |
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| veria vacchiano researcher (ORCID 0000-0002-3607-2394) |
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| giuseppe vacchiano |
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| priscilla vacchiano BR |
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