Family name Usseglio (Usseglio 
) , in the entire world, is quite a rare surname. The last name Usseglio is habitual in France, where it is a rare surname, Switzerland, and Italy. Not in comparison with a country's population, it is the most numerous in France, Italy, and Peru. Much less frequently, Usseglio is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Usseglio | Italy, Switzerland, Argentina, France, Peru |
| leopoldo usseglio Italian historian and politician, IT (b. 1853) |
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amedeo usseglio Italian resistance fighter, FR (b. 1911) |
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| robert usseglio French politician, FR (b. 1956) |
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| pascal usseglio French politician, FR (b. 1976) |
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| paolo usseglio researcher |
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| sandro usseglio researcher |
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| john usseglio researcher (ORCID 0000-0003-3184-4751) |
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Mr, Gary, Gros, Gina, Gigi, Luis, Jose, John, Jean, Juan, Todd, Tina, Nora, Elia, Elsa, Elma, Elda, Eddy, Eric, Enzo, Emma, Hugo, Dora, Rudy, Remo, Remi, Ms, Sã, Ana, Bã, Kim, Lea, Tom, Vir, Flo, Mark, Irma, Maya, Alex, Alec, Aldo, Anna, Cily, Bety, Paul, Rosa, Rose, Rene, Mika, and Olga