Surname Mouyeni-Ngoungou (Mouyeni-Ngoungou 
) , in all the world, is a rare family name. The cognomen Mouyeni-Ngoungou is characteristic of 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 Mouyeni, and a last name Ngoungou.
| VARIANT | COUNTRY |
|---|---|
| Mouyeni-Ngoungou | Democratic Republic of the Congo |