Family name Kachasit (Kachasit 
) , globally, is a very rare last name. The cognomen Kachasit is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, Kachasit is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kachasit | Thailand |
Jamroon, Rattiporn, and Jiratchaya