Last name Fregoni (Fregoni 
) , around the world, is quite a rare surname. The last name Fregoni is habitual in Italy, where it is quite a rare surname, Switzerland, where it is a rare surname, and Argentina. In absolute terms, it is the most numerous in Italy, Argentina, and Brazil. Very seldom, Fregoni is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Fregoni | Italy, United States, Tanzania, Argentina, Brazil |
| alessandro fregoni Italian association football player (1917-2000), IT (b. 1917) |
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| mario fregoni IT (b. 1934) |
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| jacopo fregoni researcher ORCID ID = 0000-0002-4356-3060 |
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| bartholomeo fregoni |
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Mr, Marco, Mauro, Meuro, Angel, Annie, Anita, Ambra, Carlo, Carla, Cesar, Cyndi, Pablo, Paola, Paolo, Primo, Randi, Rogeu, Reneu, Delia, Dante, David, Mario, Maria, Olga, Ilda, Ana, Ugo, Mark, Sara, Saul, Alex, Anna, Carl, Rosa, Rita, Daisy, Geni, Lida, Luca, Luis, Jose, Jodi, Juan, Elda, Hugo, Vera, Irma, Gian, and Diego