Cognomen Giallorenzo (Giallorenzo 
) , in the world, is a rare family name. The cognomen Giallorenzo is habitual in Uruguay, where it is quite a rare surname, Italy, where it is a rare surname, and Argentina. In absolute terms, it most frequently occurs in Italy, Argentina, and the United States. Much less frequently, Giallorenzo is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Giallorenzo | Uruguay, Argentina, Italy, Venezuela, United States |
| raffaele giallorenzo sentenced to death during the World War II, IT (b. 1921) |
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| paul giallorenzo American pianist, US (b. 1975) |
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| josé giallorenzo Argentine basketball player, AR |
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| saverio giallorenzo researcher |
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| mariano giallorenzo Italian bicycle racer, IT (b. 1982) |
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| antonio giallorenzo |
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Mr, Maria, Mario, Marco, Meeli, Mirta, Susan, Sofia, Alyse, Ariel, Vito, Chris, Cathy, Brian, Paula, Pablo, Peter, Pedro, Rocio, Rocco, Renee, Canio, Hugo, Ezio, Juan, Ms, Ann, Amy, Kim, Mely, Mike, Alan, Anna, Abel, Caio, Paul, Raul, Rosa, Dana, Gaby, Lori, Luis, Jose, John, Joan, Joey, Delia, and Devin