Last name รัตนยศ (รัตนยศ 
) , around the world, is a very rare cognomen. The family name รัตนยศ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, รัตนยศ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| รัตนยศ | Thailand |