Family name Faustu (Фаусто 
, Faustu 
) , in the entire world, is an extremely rare surname. The surname Faustu is habitual in Russia, where it is an extremely rare surname, Ukraine, and Nigeria. More prevalently, Faustu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Фаусто | Russia, Ukraine |
| Faustu | Nigeria |