Surname รัชฎ์ (Ratcha 
, รัชฎ์ ) , all over the world, is quite a common family name. The cognomen รัชฎ์ is characteristic of India, where it is a rare surname, and Thailand. Very seldom, รัชฎ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ratcha | Malaysia, Philippines, United States, Thailand, India |
| รัชฎ์ | Thailand |