Cognomen Ekkai (เอกชัย 
, Ekkai 
) , around the world, is a rare surname. The last name Ekkai is habitual in Thailand, where it is a rare surname, and India, where it is an extremely rare surname. Much more frequently, Ekkai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| เอกชัย | Thailand |
| Ekkai | India, Thailand |