Family name Omoki (Omoki 
) , in all the world, is quite a rare last name. The surname Omoki is characteristic of the Democratic Republic of the Congo, where it is a rare surname, Japan, and China, where it is an extremely rare surname. Likewise, Omoki is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Omoki | Japan, China, Democratic Republic of the Congo |