Cognomen ธนเดชธนิกกุล (ธนเดชธนิกกุล 
) , throughout the world, is an extremely rare family name. The cognomen ธนเดชธนิกกุล is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| ธนเดชธนิกกุล | Thailand |