Cognomen Flavio Fabian (Flavio Fabian 
) , throughout the world, is an extremely rare last name. The family name Flavio Fabian is habitual in Latin America and the Caribbean, particularly Chile, where it is a very rare surname. More prevalently, Flavio Fabian is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Flavio Fabian | Peru, Ecuador, Chile, Argentina |