Surname Сиордия (Сиордия 
, Siordiya 
) , all around the world, is a very rare family name. The last name Сиордия is habitual in Russia, where it is a very rare surname, Kazakhstan, and Ukraine, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Сиордия | Kazakhstan, Russia |
| Siordiya | Russia, Ukraine |