Surname Changyenchum (Changyenchum 
) , all around the world, is a very rare last name. The family name Changyenchum is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Changyenchum | Thailand |
Virojt, Prasoet, Supaporn, Supapron, and Chowtippawan