Family name Lavadenz (Lavadenz 
) , around the world, is a rare surname. The family name Lavadenz is habitual in Latin America and the Caribbean, particularly Bolivia, where it is quite a rare surname, Argentina, where it is a rare surname, and Chile, where it is a very rare surname. In absolute terms, it is commonest in Bolivia, Argentina, and the United States.
| VARIANT | COUNTRY |
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| Lavadenz | Argentina, Brazil, Bolivia, Chile, United States |
| alberto ruiz lavadenz Bolivian musician and composer (b. 1898) |
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| jorge t. lavadenz (b. 1907) |
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| marcelo arauz lavadenz Bolivian festival director, culture promoter, choir leader and music educator, BO (b. 1934) |
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Ana, Boris, Pablo, Paola, Pilar, Raúl, Renzo, Ruben, Diego, Doris, Gelva, Lizet, Lydia, Jaime, Jorge, Joaci, Jesus, Julio, Nelly, Elena, Erika, Henry, Cesar, Anghy, Sonia, Simon, Mara, Mane, Alan, Cami, Ciro, Khya, Paul, Rosa, Ruth, Dany, Vania, Gina, Jose, Joel, Juan, Olga, Maria, Mario, Marco, Mayra, Mabel, Milko, Luis, and Oscar