Cognomen แก้วสุดใจ (แก้วสุดใจ, Kaewsudjai 
) , around the world, is a very rare last name. The cognomen แก้วสุดใจ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kaewsudjai | Thailand |