Family name ระดา (Rada 
, ระดา 
) , in the entire world, is a common last name. The surname ระดา is habitual in Aland Islands, where it is quite a common surname, Czechia, and North Macedonia (explore the name in all countries). Measured by absolute frequency, it most frequently occurs in Philippines, India, and Egypt. Likewise, ระดา is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rada | Colombia, Philippines, Egypt, India, Serbia |
| ระดา | Thailand |