Family name สุมา (Suma 
, สุมา 
) , globally, is a common cognomen. The family name สุมา is habitual in Sierra Leone, where it is quite a common surname, Albania, where it is quite a rare surname, and Kosovo. Measured by absolute frequency, it is the most numerous in Bangladesh, Indonesia, and India. More frequently, สุมา is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Suma | Bangladesh, Tanzania, India, Indonesia, Japan |
| สุมา | Thailand |