Last name أوكو (Oku 
, Okui 
, أوكو) , all around the world, is a common surname. The surname أوكو is characteristic of Ghana, where it is quite a rare surname, Nigeria, and Turkey, where it is a rare surname. Likewise, أوكو is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Oku | United States, Nigeria, Ghana, Indonesia, Turkey |
| Okui | Brazil, Uganda, United States, Nigeria, Japan |