Family name เมฆชัย (เมฆชัย 
, Mekchai 
) , all over the world, is a rare surname. The last name เมฆชัย is characteristic of Thailand, where it is a rare surname, Norway, where it is a very rare surname, and the United States, where it is an extremely rare surname. Much less frequently, เมฆชัย is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| เมฆชัย | Thailand |
| Mekchai | Norway, Thailand, United States |