Last name รวมชัยภูมิ (รวมชัยภูมิ 
, Roumchaiyaphum) , around the world, is a rare cognomen. The last name รวมชัยภูมิ is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| รวมชัยภูมิ | Thailand |