Surname สมรภูมิ (สมรภูมิ 
, Somruam , Samorrapoom ) , across the world, is a rare cognomen. The last name สมรภูมิ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Likewise, สมรภูมิ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Samorrapoom, สมรภูมิ, Samoraphum, Somruam | Thailand |
Caldera, Calderara, Calderos, Rearksomphus, Samonporm, Samonraphoom, Samoorapoom, Samorapom, Samorapum, Samorlapoom, Samorraphum, Smoraphum, Smorapoom, Smornrapoom, Somraksa, and Somrongthong