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