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