Family name มโนชัย (Manochai 
, มโนชัย , Manojai 
) , in the entire world, is quite a rare last name. The family name มโนชัย is characteristic of South-eastern Asia, particularly Thailand, where it is quite a rare surname. Very seldom, มโนชัย is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Manochai | Laos, Thailand, United States, Malaysia |
| มโนชัย | Thailand |
| Manojai, Manojhai | Thailand, India |