Cognomen Rottreau (Rottreau 
) , around the world, is a very rare family name. The family name Rottreau is characteristic of France, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname. Much less frequently, Rottreau is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rottreau | United Kingdom, France |