Surname เก่งมนตรี (เก่งมนตรี, Khengmontree, Kengmontee 
) , in the entire world, is a very rare last name. The family name เก่งมนตรี is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kengmontree, Kengmontee | Thailand |