Family name Tongo-Tongo (Tongo-Tongo 
) , all around the world, is a rare cognomen. The surname Tongo-Tongo 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 Tongo, and a last name Tongo.
| VARIANT | COUNTRY |
|---|---|
| Tongo-Tongo | Democratic Republic of the Congo |