Family name Radiat (Radiat 
) , in the entire world, is a rare last name. The last name Radiat is habitual in Nigeria, where it is a rare surname, Indonesia, where it is a very rare surname, and Israel. Also, Radiat is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Radiat | South Africa, Nigeria, Indonesia, United States, India |