Cognomen Erwil (Erwil 
) , globally, is an extremely rare last name. The cognomen Erwil is characteristic of Latin America and the Caribbean, particularly Nicaragua, where it is a very rare surname, Venezuela, and Mexico, where it is an extremely rare surname. Much more prevalently, Erwil is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Erwil | South Africa, Mexico, Venezuela, Philippines, Democratic Republic of the Congo |
Sim, Dozano, Gaspar, Lucero, Omayan, Otlang, Yusmar, Anthony, Atienza, Pascual, Detecio, Doctama, Durante, Dumotan, Sherwood, Castillo, Casillan, Pagunsan, Galindez, Marianito, Caballero, Dela Cruz, Deadio, Pineda, Pereda, Brillo, Pea, Gan, Alog, Cruz, Bajo, Baje, Roda, Yang, Moral, Merwe, Libradilla, Samoy, Abuan, Pasia, Ramos, Rioja, Diano, Namia, Olano, Obiso, Sagang, Amurao, Arpon, and Nacionales