Cognomen Doomklang (Doomklang 
) , in the world, is a very rare last name. The family name Doomklang is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Doomklang | Thailand |
Sopit, Jakkrit, Suwichada, Jaturong, and Wirunchana