Surname Ganchai (Ganchai 
) , in all the world, is a very rare family name. The family name Ganchai is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname, and Malaysia. More frequently, Ganchai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ganchai | France, India, Malaysia, Thailand |