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