Cognomen Madumadu (Madumadu 
) , across the world, is a rare last name. The last name Madumadu is characteristic of Kenya, where it is a rare surname, Nigeria, where it is an extremely rare surname, and the United States. Much less frequently, Madumadu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Madumadu | Nigeria, United States, Kenya |