Cognomen Sukjai (สุขใจ 
, Sukjai 
) , throughout the world, is quite a common surname. The family name Sukjai is habitual in South-eastern Asia, particularly Thailand, where it is quite a rare surname, Singapore, where it is a rare surname, and Myanmar. Likewise, Sukjai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| สุขใจ | Thailand |
| Sukjai | Myanmar, Thailand, Singapore, India, China |