Family name Roesly-Dadd (Roesly-Dadd 
) , around the globe, is an extremely rare surname. The family name Roesly-Dadd is characteristic of Northern America, particularly the United States, where it is an extremely rare surname. Parts of the name also exists independently as a last name Roesly, and a last name Dadd.
| VARIANT | COUNTRY |
|---|---|
| Roesly-Dadd | United States |