Cognomen Mario Alex (Mario Alex 
) , in all the world, is a rare family name. The surname Mario Alex is habitual in Latin America and the Caribbean, particularly Chile, where it is a rare surname. More prevalently, Mario Alex is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mario Alex | Bolivia, Chile, Ecuador, Afghanistan, Peru |
Soto, Aioanei, Cobeña, Pongase, Gaetani, Escobar, Vasquez, Vergara, Zuñiga, Castillo, Reategui, Gallardo, Gonzalez, Gonzales, Jorquera, Neguiman, Hollberg, Valencia, Vitorino, Contreras, Cristobal, Rodriguez, Aguilar, Alvarez, Sanchez, Mendoza, Pono, Diaz, Jara, Silva, Amaro, Cerda, Rojas, Lopez, Montes, Moreno, Cortes Rojas, Muñoz, Concha, Cortes, Romero, Rivera, Garcia, Franco, Flores, Orrego, Quispe, Mayrong, Acuña, and Rubio Valencia