Surname สุขสมใจ (Happy 
, สุขสมใจ 
, Suksomjai 
) , in the world, is a common cognomen. The surname สุขสมใจ is habitual in Sub-Saharan Africa, particularly Nigeria, where it is quite a common surname, Namibia, where it is quite a rare surname, and Eswatini. Measured by absolute frequency, it most frequently occurs in Nigeria, Bangladesh, and Indonesia. More frequently, สุขสมใจ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Happy | Bangladesh, Myanmar, Tanzania, Indonesia, Nigeria |
| Suksomchai, สุขสมใจ | Thailand |
| Suksomjai | Thailand, Singapore |
Sooksomjai, and Suaisomjai