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 | Brazil, Romania, Mozambique, Mexico, United States |
| Sidonija | Brazil, Croatia, South Africa, United States, Venezuela |
| Сидония | Russia, Kazakhstan |
| Sidoniya | United States, Italy, Ukraine |