Surname Giantomassi (Giantomassi 
) , around the world, is a rare last name. The surname Giantomassi is characteristic of Italy, where it is a rare surname, Argentina, and Brazil, where it is a very rare surname. Much less frequently, Giantomassi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Giantomassi | Brazil, United States, Argentina, Italy |
| christian giantomassi Italian boxer, IT (b. 1973) |
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| matteo giantomassi researcher (ORCID 0000-0002-7007-9813) |
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Mr, Ramon, Gilda, Laura, Liana, Lucia, Luigi, Jorge, Julia, Julio, Nilza, Elisa, Ellen, Vanna, Fabio, Marina, Martha, Marcia, Matteo, Mattia, Monica, Milena, Pedro, Pablo, Catia, Carol, Ms, Ana, Lia, Sara, Alan, Aldo, Anna, Dino, Dora, Luis, Samuel, Jose, Juan, Irma, Olga, Maria, Mario, Marco, Marly, Mirco, Andre, Amado, Joao, and Susana