Family name Choiwongngam (Choiwongngam 
) , all over the world, is an extremely rare cognomen. The last name Choiwongngam is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Choiwongngam | Thailand |
Phiphop, Chatchai, Chananhon, and Sirinarinth