Family name Umbun (Umbun 
) , globally, is a rare cognomen. The cognomen Umbun is characteristic of South-eastern Asia, particularly Malaysia, where it is a very rare surname, Indonesia, and Thailand, where it is an extremely rare surname. Likewise, Umbun is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Umbun | Philippines, Thailand, Indonesia, Nigeria, Malaysia |