Last name Fañas (Fañas 
) , around the world, is a rare cognomen. The surname Fañas is habitual in Latin America and the Caribbean, particularly the Dominican Republic, where it is quite a rare surname, Costa Rica, where it is a very rare surname, and Venezuela.
| VARIANT | COUNTRY |
|---|---|
| Fañas | Costa Rica, Spain, Dominican Republic, United States, Venezuela |