Cognomen Failli (Failli 
) , globally, is a rare surname. The last name Failli is habitual in Italy, where it is quite a rare surname, Australia, where it is a very rare surname, and New Zealand. Not in comparison with a country's population, it most frequently occurs in Italy, Brazil, and Australia. Very seldom, Failli is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Failli | Italy, Australia, United States, France, Brazil |
|
francesco failli road bicycle racer, IT (b. 1983) |
|
| paola failli researcher |
|
|
| sizar failli SE (b. 1979) |
|
Ada, Carla, Bruno, Bruna, Paola, Paolo, Robin, Dario, Laura, Linda, Lucia, Luisa, Luigi, Luana, Noemi, Elisa, Emily, Harry, Vieri, Fabio, Marzia, Matteo, Carlo, Sonia, Sarah, Mirco, Lia, Joe, Mara, Sara, Sira, Aldo, Anna, Gino, Lapo, Luca, Magali, Jose, Joao, Elia, Enzo, Emma, Omar, Maria, Mario, Marta, Marco, Mauro, John, and Monica