Cognomen Bonfantini (Bonfantini 
) , in the world, is a rare last name. The surname Bonfantini is characteristic of Uruguay, where it is a rare surname, Italy, and France, where it is a very rare surname. Measured by absolute frequency, the name is most common in Italy, the United States, and Uruguay.
| VARIANT | COUNTRY |
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| Bonfantini | Uruguay, Italy, Canada, United States, France |
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corrado bonfantini Italian politician, IT (b. 1909) |
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| giuseppe bonfantini Italian politician and teacher, IT (b. 1877) |
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| mario bonfantini Italian author, literary scholar and translator, IT (b. 1904) |
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| sergio bonfantini painter (1910-1989), IT (b. 1910) |
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| massimo a. bonfantini (b. 1942) |
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| francesca bonfantini researcher ORCID ID = 0000-0002-6040-2285 |
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| accursio bonfantini |
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| agnese bonfantini Italian association football player, IT (b. 1999) |
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Aldo, Simone, Alfred, Andrea, Angela, Cinzia, Barret, Bailey, Pietro, Robert, Davide, Libera, Flavia, Michela, Alessio, Adriano, Carmine, Barbara, Brianna, Roberto, Gennaro, Giorgio, Sandro, Elsie, Randy, Peter, Anna, Carl, Bart, Benn, Bill, Kimi, Pina, Dave, Gino, Leah, Jacques, Leda, Luca, Toni, Ivan, Olga, Maria, Marco, Mateo, Carlo, Bruno, Karen, Lisa, and Valerio