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 | Myanmar, Thailand, India, Turkey, China |
| โกสุมภ์ | Thailand |
| Kosoom | United States, Thailand, India |