Cognomen Fausin (Fausin 
) , worldwide, is an extremely rare family name. The surname Fausin is characteristic of Honduras, where it is a very rare surname, and Malaysia, where it is an extremely rare surname. More frequently, Fausin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Fausin | Honduras, Spain, Brazil, Malaysia, India |