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Family name Sumontra (Sumontra
, สุมลตรา
) , throughout the world, is an extremely rare surname. Much more prevalently, Sumontra is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sumontra | India, Thailand |
| สุมลตรา | Thailand |
Deb, Das, Cotmolee, Malison, Chinkae, Chawagit, Chawajit, Banerjee, Jitchote, Niyompan, Wateerak, Chaipuriwong, Jarusiriwat, Chatterjee, Chanlongsirichai, and Plansangkate