Surname Ranuku (Ranuku 
) , in all the world, is a very rare cognomen. The family name Ranuku is habitual in Fiji, where it is quite a common surname, and South Africa, where it is an extremely rare surname. Very seldom, Ranuku is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ranuku | India, Fiji, South Africa |