Surname Tumbang (Tumbang 
) , all around the world, is a very rare last name. The cognomen Tumbang is habitual in South-eastern Asia, particularly Malaysia, where it is a very rare surname, Indonesia, and Philippines, where it is an extremely rare surname. Also, Tumbang is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tumbang | Malaysia, Indonesia, Philippines |