Surname ត្រះ (ត្រះ 
) , in the entire world, is an extremely rare last name. The cognomen ត្រះ is habitual in South-eastern Asia, particularly Cambodia, where it is a very rare surname. Also, ត្រះ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ត្រះ | Cambodia |