Cognomen Biaggio (Biaggio 
) , worldwide, is a rare last name. The cognomen Biaggio is characteristic of Switzerland, where it is a rare surname, Argentina, and Italy. Measured by absolute frequency, the name is most common in Brazil, Italy, and Argentina. Very seldom, Biaggio is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Biaggio | Italy, Switzerland, United States, Argentina, Brazil |
| angela maria brasil biaggio Psychologist (1940-2003), BR (b. 1940) |
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| claudio biaggio Argentine association football player, AR (b. 1967) |
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| miguel ángel biaggio Mexican actor, MX (b. 1977) |
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| ivan biaggio researcher |
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| m. biaggio researcher |
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| sonia r biaggio researcher |
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| eliara pinto vieira biaggio researcher (ORCID 0000-0003-2989-5787) |
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