Globally, เอกวรรธน์ (เอกวรรธน์ 
) is a very rare dominantly male, but uncommonly female first name. The forename เอกวรรธน์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare largely male, but seldom girly name.
| VARIANT | COUNTRY |
|---|---|
| เอกวรรธน์ | Thailand |