Family name Ersilio (Ersilio 
) , worldwide, is a very rare surname. The surname Ersilio is characteristic of Switzerland, where it is a very rare surname, Venezuela, and Nicaragua. Measured by absolute frequency, it is the most numerous in Italy, Switzerland, and Venezuela. Much more prevalently, Ersilio is the forename as well as the last name.
Mele, Caparco, Colombo, Belcore, Pereira, Depetre, La Cerra, Lodetti, Fittabile, Marsella, Marfelli, Balducci, Bernardo, Salvatore, Staglioli, Spagnuolo, Calderone, Revainera, Di Matteo, Trapanese, Iacobelli, Malenchini, Carbone, Schiano, Segovia, Tonini, Rota, Riva, Medas, Silva, Serra, Souza, Scala, Costa, Rossi, Reffo, Ceccarelli, Derna, Gatto, Gotti, Greco, Villa, Mattei, Sinisi, Agugini, Acuña, Greppi, Lancia, Gatti, and Malinconico