Last name Ruusukallio (Ruusukallio 
) , in the world, is a very rare surname. The cognomen Ruusukallio is habitual in Finland, where it is quite a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ruusukallio | Finland, United States |
|
sami ruusukallio Finnish musician, FI (b. 1963) |
|
| kalle ruusukallio FI |
|