Family name Fanny Estefany (Fanny Estefany 
) , in all the world, is an extremely rare cognomen. The cognomen Fanny Estefany is habitual in Latin America and the Caribbean, particularly Chile, where it is a very rare surname. More prevalently, Fanny Estefany is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Fanny Estefany | Ecuador, Chile, Peru |