Last name ประมูลชัย (ประมูลชัย 
) , in all the world, is a very rare cognomen. The family name ประมูลชัย is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, ประมูลชัย is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ประมูลชัย | Thailand |