Surname Castagno (Castagno 
, Кастаньо 
) , worldwide, is quite a common last name. The surname Castagno is characteristic of Argentina, where it is quite a rare surname, Uruguay, and Italy. Not in comparison with a country's population, it is commonest in Argentina, Italy, and the United States. Very seldom, Castagno is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Castagno | France, Argentina, Italy, United States, Uruguay |
| Кастаньо | Russia |
Castagna, Castagnaro, and Castagño
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luigi castagno Italian politician and trade unionist, IT (b. 1893) |
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césar castagno Argentinian association football player (1924-1998), AR (b. 1924) |
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daniella castagno Argentinian screenwriter, CL (b. 1970) |
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| john castagno (b. 1930) |
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| néstor castagno AR (b. 1940) |
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| dario castagno British writer (b. 1967) |
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| emanuele castagno researcher |
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| matteo castagno researcher |
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| davide castagno researcher |
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| jeremy castagno researcher ORCID ID = 0000-0001-5458-9787 |
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| meghan d castagno researcher |
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| pasquale castagno researcher (ORCID 0000-0002-5705-1066) |
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| damián castagno Argentinian association football player, AR (b. 1986) |
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| julia castagno UY (b. 1977) |
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| dino castagno Argentine professional footballer, AR (b. 1993) |
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