Family name Onyewu (Onyewu 
) , across the world, is a rare last name. The last name Onyewu is habitual in Nigeria, where it is a very rare surname, the United States, and the United Kingdom, where it is an extremely rare surname. Also, Onyewu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Onyewu | United Kingdom, Germany, United States, Nigeria |
|
oguchi onyewu American soccer player, US (b. 1982) |
|
| chiatogu onyewu researcher |
|