All over the world, Onyewuchi (Onyewuchi 
) is a common male first name. The forename Onyewuchi is habitual in Nigeria, where it is quite a common boy's name, and the United States, where it is an extremely rare masculine name. Likewise, Onyewuchi is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Onyewuchi | South Africa, United Kingdom, United States, Niger, Nigeria |
| ezenwa francis onyewuchi politician, NG (b. 1968) |
|