Last name Fidellia (Fidellia 
) , in the world, is a very rare surname. The family name Fidellia is habitual in Indonesia, where it is a very rare surname, Nigeria, where it is an extremely rare surname, and the United States. More frequently, Fidellia is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Fidellia | Indonesia, United States, Nigeria, Democratic Republic of the Congo |