Surname Diego Alfonso (Diego Alfonso 
) , worldwide, is a rare cognomen. The family name Diego Alfonso is habitual in Chile, where it is quite a rare surname, and Spain, where it is a rare surname. More frequently, Diego Alfonso is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Diego Alfonso | Costa Rica, Spain, Chile, Ecuador, Peru |
Mora, Miranda, Sanchez, Alvarez, Ramirez, Delgado, Herrera, Zuñiga, Martinez, Sandoval, Carrasco, Castillo, Gonzalez, Espinoza, Orellana, Contreras, Rodriguez, Gutierrez, Hernandez, San Martin, Rodruiguez, Valenzuela, Morales, Flores, Vargas, Nuñez, Soto, Diaz, Jara, Vega, Silva, Araya, Arias, Avila, Perez, Rojas, Bittner Copano, Reyes, Muñoz, Suarez, Chavez, Castro, Campos, Cortes, Romero, Rivera, Garcia, Torres, Lopez, and Hernandez Ovalle