Family name Sumbua (Sumbua 
) , all over the world, is a rare cognomen. The surname Sumbua is habitual in Sub-Saharan Africa, particularly Kenya, where it is a rare surname, and Tanzania, where it is a very rare surname. Very seldom, Sumbua is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sumbua | India, Tanzania, Kenya |