Cognomen Kumna (Kumna 
) , all around the world, is a very rare last name. The surname Kumna is habitual in South-eastern Asia, particularly Singapore, where it is a rare surname, Thailand, where it is a very rare surname, and Malaysia. Likewise, Kumna is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kumna | Singapore, Malaysia, India, Nigeria, Thailand |