Family name Poomrattanaroj (Poomrattanaroj 
) , around the globe, is an extremely rare last name. The cognomen Poomrattanaroj is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Poomrattanaroj | Thailand |
Monyawadee, and Natsakon