Last name Ernaud (Ernaud 
) , around the world, is a rare family name. The last name Ernaud is characteristic of Madagascar, where it is a rare surname, and France, where it is an extremely rare surname. More frequently, Ernaud is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ernaud | Brazil, United States, France, Democratic Republic of the Congo, Madagascar |