Last name Rossay (Rossay 
) , in the entire world, is a very rare surname. The family name Rossay is habitual in Belgium, where it is a rare surname, France, where it is a very rare surname, and Venezuela, where it is an extremely rare surname. Much less frequently, Rossay is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rossay | Belgium, France, Venezuela, Costa Rica, South Africa |