Cognomen Ntambua (Ntambua 
) , in all the world, is a rare family name. The cognomen Ntambua is characteristic of the Democratic Republic of the Congo, where it is a rare surname, South Africa, where it is an extremely rare surname, and the United Kingdom. Very seldom, Ntambua is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ntambua | United Kingdom, South Africa, United States, France, Democratic Republic of the Congo |