Surname Khachachan (คชาชาญ 
, Khachachan 
) , around the world, is a rare family name. The surname Khachachan is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Also, Khachachan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| คชาชาญ | Thailand |
| Khachachan | India, Thailand |