Cognomen Castagnino (Castagnino 
) , in all the world, is quite a rare last name. The family name Castagnino is characteristic of Paraguay, where it is quite a common surname, Argentina, where it is quite a rare surname, and Italy. Much less frequently, Castagnino is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Castagnino | Paraguay, Brazil, Italy, Argentina, Peru |
Castagñino, and Цастагнино
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juan carlos castagnino Argentine artist (1908-1972), AR (b. 1908) |
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raúl héctor castagnino Argentinian sociologist, AR (b. 1914) |
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| juan bautista castagnino AR (b. 1884) |
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| rodolfo castagnino IT (b. 1893) |
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| mario castagnino Argentine physicist, AR (b. 1935) |
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| ricardo castagnino Argentinian judoka, AR (b. 1947) |
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| elena flavia castagnino berlinghieri Italian archaeologist (1966-), IT (b. 1966) |
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| éric castagnino FR (b. 1957) |
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| umberto castagnino berlinghieri Italian historian (1976-), IT (b. 1976) |
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| d s castagnino researcher |
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| fernando castagnino |
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| delfina castagnino |
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| alessia castagnino IT (b. 1984) |
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