Family name รัชน์ (Ratcha 
, รัชน์ ) , around the globe, is quite a common cognomen. The surname รัชน์ is characteristic of India, where it is a rare surname, and Thailand. Very seldom, รัชน์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ratcha | Malaysia, Philippines, United States, Thailand, India |
| รัชน์ | Thailand |