Surname สุมร (สุมร 
, Sumorn 
) , around the globe, is an extremely rare family name. The surname สุมร is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More frequently, สุมร is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| สุมร | Thailand |
| Sumorn | United States, Thailand |