Surname เครือใจ (เครือใจ 
, Krueajai , Khrueangjai ) , throughout the world, is a rare family name. The cognomen เครือใจ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, เครือใจ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Khrueangjai, Khrueajai, Krueajai, เครือใจ | Thailand |
Heart, Kruangjai, and Krueangjai