Cognomen Isidonia (Isidonia 
) , around the globe, is a very rare surname. The last name Isidonia is characteristic of Latin America and the Caribbean, particularly Nicaragua, where it is a very rare surname, Mexico, and Chile, where it is an extremely rare surname. Likewise, Isidonia is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Isidonia | Philippines, Mexico, Nicaragua, Italy, Chile |