Cognomen กัณชัย (Kanchai 
, กัณชัย ) , worldwide, is a rare surname. The surname กัณชัย is habitual in Thailand, where it is a rare surname, Malaysia, where it is an extremely rare surname, and India. Likewise, กัณชัย is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kanchai | Malaysia, Thailand, United States, India, Myanmar |
| กัณชัย | Thailand |