Surname Marchello (Marchello 
) , in all the world, is quite a rare family name. The last name Marchello is characteristic of Italy, where it is quite a rare surname, Switzerland, where it is a rare surname, and Argentina. Not in comparison with a country's population, the name is most common in Italy, the United States, and Indonesia. Likewise, Marchello is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Marchello | Italy, France, Indonesia, United States, Argentina |
| giuseppe marchello academic (1912 - 1995), member of the Accademia delle Scienze di Torino since 1976, IT (b. 1912) |
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| giacomo marchello Italian politician (1915-2000), IT (b. 1915) |
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| christiane marchello-nizia French linguist, FR (b. 1941) |
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| nicholas j marchello researcher |
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| marchello vealy college basketball player (2006–2008) Oral Roberts |
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| david de marchello David de Marchello, a correspondent of Willibald Pirckheimer |
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| christian s marchello researcher (ORCID 0000-0001-6952-9840) |
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