Surname ใจเอก (Chaiek 
, Good-Hearted 
, ใจเอก ) , in the entire world, is a rare cognomen. The surname ใจเอก is habitual in Thailand, where it is a rare surname, and Greece, where it is a very rare surname. Also, ใจเอก is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Chaiek | Greece, Thailand |
| Good-Hearted | Myanmar |
| ใจเอก | Thailand |