Cognomen Somban (Somban 
) , all over the world, is a very rare surname. The surname Somban is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname, Philippines, and Malaysia, where it is an extremely rare surname. Much less frequently, Somban is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Somban | Philippines, India, Malaysia, Thailand, United States |