Surname Rajcha (ราชสีห์ 
, Rajcha 
) , across the world, is quite a rare cognomen. The last name Rajcha is habitual in South-eastern Asia, particularly Thailand, where it is quite a rare surname. Much less frequently, Rajcha is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ราชสีห์ | Thailand |
| Rajcha | India, Thailand |