Cognomen ใจยศ (ใจยศ 
, Jaiyos ) , worldwide, is a rare surname. The surname ใจยศ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, ใจยศ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jaiyos, ใจยศ | Thailand |