Family name Fabian Octavio (Fabian Octavio 
) , all around the world, is a very rare last name. The cognomen Fabian Octavio is habitual in Chile, where it is a rare surname, and Spain, where it is a very rare surname. More prevalently, Fabian Octavio is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Fabian Octavio | Costa Rica, Peru, Ecuador, Spain, Chile |