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