Family name Ntsoumou-Assah (Ntsoumou-Assah 
) , in the world, is a rare last name. The family name Ntsoumou-Assah is habitual in Sub-Saharan Africa, particularly the Democratic Republic of the Congo, where it is a rare surname. Parts of the name also exists independently as a last name Ntsoumou, and a last name Assah.
| VARIANT | COUNTRY |
|---|---|
| Ntsoumou-Assah | Democratic Republic of the Congo |