Cognomen โกสุมภ์ (Kosum 
, โกสุมภ์ , Kosoom 
) , across the world, is a rare last name. The cognomen โกสุมภ์ is characteristic of Thailand, where it is a rare surname, Malaysia, where it is a very rare surname, and Turkey. Not in comparison with a country's population, it is commonest in Thailand, India, and Turkey. More prevalently, โกสุมภ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kosum | China, Myanmar, Turkey, Thailand, India |
| โกสุมภ์ | Thailand |
| Kosoom | Thailand, United States, India |