Family name Clementoni (Clementoni 
) , in all the world, is quite a rare surname. The family name Clementoni is habitual in Italy, where it is quite a rare surname, Argentina, where it is a rare surname, and France, where it is a very rare surname. In absolute terms, it most frequently occurs in Italy, Argentina, and the United States. Very seldom, Clementoni is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Clementoni | Argentina, Brazil, France, Italy, United States |
| remigio clementoni IT (b. 1912) |
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| alberto clementoni Italian footballer, IT (b. 1931) |
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| laurent clementoni French politician; mayor of Garancières-en-Beauce, FR (b. 1961) |
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| mario clementoni founder of an Italian toy manufacturer |
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Mr, Lucy, Luis, Luiz, Jose, John, Joao, Jean, Juli, Juan, Toni, Todd, Elia, Elsa, Elza, Eric, Erin, Enio, Enzo, Etel, Ezio, Hugo, Luca, Fred, Lisa, Leah, Ms, Ana, Bud, Pam, Liz, Lia, Ivo, Mary, Maya, Maii, Mery, Mike, Sara, Alex, Aldo, Anna, Bart, Pepe, Rosa, Dale, Gary, Lino, and Maria