In the world, สุมลทรา (สุมลทรา 
) is a very rare mostly female, but infrequently masculine first name. The forename สุมลทรา is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare dominantly female, but uncommonly male name.
| VARIANT | COUNTRY |
|---|---|
| สุมลทรา | Thailand |