Surname Udumukwu (Udumukwu 
) , around the world, is a very rare family name. The cognomen Udumukwu is characteristic of Nigeria, where it is a very rare surname, and the United States, where it is an extremely rare surname. Also, Udumukwu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Udumukwu | United States, Nigeria |