Family name ยมสิทธิ์ (ยมสิทธิ์ 
) , in the world, is an extremely rare last name. The family name ยมสิทธิ์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Likewise, ยมสิทธิ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ยมสิทธิ์ | Thailand |