Last name Silvachi (Silvachi 
, Сильваши 
) , in all the world, is a very rare family name. The surname Silvachi is habitual in Kazakhstan, where it is a very rare surname, Russia, and Brazil, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Silvachi | Brazil |
| Сильваши | Kazakhstan, Russia, Ukraine |