Last name นัยเจริญ (นัยเจริญ 
) , globally, is a very rare cognomen. The family name นัยเจริญ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, นัยเจริญ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| นัยเจริญ | Thailand |