Surname Efrain Ramon (Efrain Ramon 
) , worldwide, is an extremely rare last name. The cognomen Efrain Ramon is habitual in Latin America and the Caribbean, particularly Chile, where it is a very rare surname. More prevalently, Efrain Ramon is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Efrain Ramon | Costa Rica, Mexico, Chile, Ecuador, Peru |