Surname Giollo (Giollo 
) , across the world, is a rare cognomen. The surname Giollo is habitual in Switzerland, where it is a rare surname, Argentina, and Brazil. Not in comparison with a country's population, it is the most numerous in Brazil, Argentina, and Italy. Very seldom, Giollo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Giollo | Australia, Argentina, Brazil, Italy, Switzerland |
| jaime giollo Brazilian footballer, BR (b. 1937) |
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| roberto giollo Italian politician, IT (b. 1943) |
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| manuel giollo researcher (ORCID 0000-0001-9434-2383) |
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| alessandro giollo researcher |
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Mr, Hugo, Ines, Iria, Iara, Olga, Maria, Mario, Marta, Marco, Marli, Santa, Santo, Sonia, Alice, Aline, Alcir, Andre, Aracy, Atila, Carla, Circe, Elza, Elsa, Noah, Nair, Ms, Le, Ana, Nei, Eva, Ivo, Mara, Alex, Anna, Aida, Bruno, Rosa, Ryan, Dora, Lais, Lucy, Luis, Luiz, Jose, Joao, Juli, Juan, Rose, and Bruna