Cognomen Isydora (Isydora 
) , around the globe, is an extremely rare surname. The surname Isydora is characteristic of Latin America and the Caribbean, particularly Venezuela, where it is an extremely rare surname, and Mexico. More prevalently, Isydora is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Isydora | Mexico, United States, India, Brazil, Venezuela |