Cognomen รัชฏ์ (Ratcha 
, รัชฏ์ ) , all around the world, is quite a common last name. The last name รัชฏ์ is characteristic of India, where it is a rare surname, and Thailand. Much less frequently, รัชฏ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ratcha | Malaysia, Philippines, United States, Thailand, India |
| รัชฏ์ | Thailand |