Family name เอกธนะชัย (เอกธนะชัย 
) , throughout the world, is an extremely rare last name. The surname เอกธนะชัย is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Likewise, เอกธนะชัย is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| เอกธนะชัย | Thailand |