Family name พรมงคลชัย (พรมงคลชัย 
, Phonmongkolchai, Phonmongkhonchai ) , all around the world, is a very rare cognomen. The cognomen พรมงคลชัย is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Pornmongkolchai, Phonmongkhonchai, พรมงคลชัย | Thailand |