Last name Agustin Fabian (Agustin Fabian 
) , in the entire world, is an extremely rare family name. The cognomen Agustin Fabian is habitual in Latin America and the Caribbean, particularly Chile, where it is a very rare surname. More frequently, Agustin Fabian is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Agustin Fabian | Costa Rica, Chile, Ecuador, Argentina, Peru |