Cognomen ชาญเดช (ชาญเดช 
, Chandech , Chandet 
) , throughout the world, is a rare surname. The last name ชาญเดช is habitual in Thailand, where it is quite a rare surname, France, where it is a very rare surname, and the United States, where it is an extremely rare surname. In absolute terms, it most frequently occurs in Thailand, France, and India. Also, ชาญเดช is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ชาญเดช, Chandetch, Chandech | Thailand |
| Chandet | Thailand, France, United States, India, Cambodia |