Surname Compagnoni (Compagnoni 
) , in all the world, is quite a rare family name. The last name Compagnoni is characteristic of Italy, where it is quite a rare surname, Switzerland, and Argentina, where it is a rare surname. Measured by absolute frequency, it most frequently occurs in Italy, Brazil, and Argentina. Much less frequently, Compagnoni is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Compagnoni | Italy, Switzerland, United States, Argentina, Brazil |
| sforza compagnoni Italian author and painter (b. 1584) |
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| pompeo compagnoni Italian jurist and historian (1602-1675) (b. 1602) |
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| giulio cesare compagnoni IT (b. 1675) |
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| pompeo compagnoni Italian bishop and historian (1693-1774), IT (b. 1693) |
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giuseppe compagnoni Italian journalist, IT (b. 1754) |
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achille compagnoni Italian mountain climber and skier, IT (b. 1914) |
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severino compagnoni Italian cross-country skier, IT (b. 1917) |
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angelo compagnoni Italian politician, IT (b. 1921) |
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| aristide compagnoni Italian cross-ountry skier, IT (b. 1910) |
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| luís alexandre compagnoni Brazilian politician (1913-1981), BR (b. 1913) |
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deborah compagnoni Italian alpine skier, IT (b. 1970) |
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| ottavio compagnoni Italian cross-country skier, IT (b. 1926) |
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| roberto compagnoni academic (1939 - ), member of the Accademia delle Scienze di Torino since 2010, IT (b. 1939) |
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matteo compagnoni Italian former short track speed skater, IT (b. 1991) |
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| enrico compagnoni Italian journalist and writer, IT (b. 1950) |
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