Last name เจริญเอก (เจริญเอก 
) , throughout the world, is an extremely rare surname. The cognomen เจริญเอก is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More prevalently, เจริญเอก is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| เจริญเอก | Thailand |