Surname Thepphachak (Thepphachak 
) , worldwide, is an extremely rare last name. The family name Thepphachak is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, Thepphachak is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thepphachak | Thailand, United States |