Cognomen Chamuna (Chamuna 
) , around the world, is an extremely rare last name. The last name Chamuna is characteristic of Argentina, where it is a very rare surname, and the United States, where it is an extremely rare surname. Much more frequently, Chamuna is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Chamuna | India, Argentina, United States, Thailand |