Family name ธาราเดช (Tharadech 
, ธาราเดช , Taradej 
) , throughout the world, is a very rare last name. The surname ธาราเดช is characteristic of Croatia, where it is a rare surname, Thailand, where it is a very rare surname, and India, where it is an extremely rare surname. Very seldom, ธาราเดช is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tharadech, ธาราเดช | Thailand |
| Taradej | India, Croatia |