Surname สุมาตร (สุมาตร 
) , worldwide, is a very rare last name. The last name สุมาตร is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. More frequently, สุมาตร is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| สุมาตร | Thailand |