Family name Сидония (Sidonia 
, Sidonija 
, Сидония 
) , in the world, is quite a rare last name. The last name Сидония is characteristic of Georgia, where it is quite a rare surname, Romania, and Israel. In absolute terms, it most frequently occurs in Mexico, Romania, and Georgia. More frequently, Сидония is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sidonia | Mozambique, Mexico, Brazil, United States, Romania |
| Sidonija | South Africa, Brazil, Venezuela, Croatia, United States |
| Сидония | Kazakhstan, Russia |
| Sidoniya | Italy, United States, Ukraine |