Cognomen Jaichan (Jaichan 
) , in the world, is a very rare surname. The family name Jaichan is habitual in Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname. More frequently, Jaichan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jaichan | Thailand, India, South Africa, United States, Peru |