Surname Radoika (Radoika 
) , in the entire world, is a very rare family name. The family name Radoika is habitual in Greece, where it is a very rare surname, and Venezuela. More frequently, Radoika is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Radoika | Greece, Colombia, Venezuela, Italy, United States |