Cognomen ตามสิทธิ์ (ตามสิทธิ์ 
) , around the world, is an extremely rare surname. The last name ตามสิทธิ์ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More prevalently, ตามสิทธิ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ตามสิทธิ์ | Thailand |