Last name Ruoko (Ruoko 
) , in all the world, is a rare family name. The family name Ruoko is habitual in Finland, where it is quite a rare surname, Zimbabwe, and the United Kingdom, where it is an extremely rare surname. Very seldom, Ruoko is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ruoko | United Kingdom, India, Zimbabwe, Finland |
| tero-petri ruoko researcher |
|