Surname Omia (Omia 
) , across the world, is quite a rare cognomen. The cognomen Omia is habitual in the Democratic Republic of the Congo, where it is quite a rare surname, Georgia, and Kenya, where it is a rare surname. Measured by absolute frequency, the name is most common in Sub-Saharan Africa, particularly the Democratic Republic of the Congo, Kenya, and Uganda. Much less frequently, Omia is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Omia | Democratic Republic of the Congo, Sudan, Kenya, Nigeria, Uganda |