Last name Bernadieu (Bernadieu 
) , in all the world, is an extremely rare family name. The surname Bernadieu is characteristic of Western Europe, particularly France, where it is an extremely rare surname. Much more prevalently, Bernadieu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Bernadieu | Brazil, Democratic Republic of the Congo, France |