Family name Daïlla-Rosia (Daïlla-Rosia 
) , worldwide, is an extremely rare surname. Much more frequently, Daïlla-Rosia is the forename as well as the last name. Parts of the name also exists independently as a first name Daïlla, and a first name Rosia.
| VARIANT | COUNTRY |
|---|---|
| Daïlla-Rosia | Democratic Republic of the Congo |