Cognomen ยศแสง (ยศแสง 
, Yotsang , Yordsang ) , in the world, is a very rare family name. The last name ยศแสง is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Yotsang, Yotsaeng, ยศแสง, Yordsang | Thailand |