Last name ยาใจ (ยาใจ 
, Yajai 
, Yachai 
) , all over the world, is quite a rare surname. The surname ยาใจ is characteristic of Thailand, where it is quite a rare surname, Israel, where it is a very rare surname, and Malaysia. Not in comparison with a country's population, it is commonest in Thailand, India, and Malaysia. More prevalently, ยาใจ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ยาใจ | Thailand |
| Yajai | Thailand, United States, India, Mexico, Malaysia |
| Yachai | Thailand, United States, Israel, India, China |