Last name Nwamadi (Nwamadi 
) , around the world, is a rare family name. The surname Nwamadi is habitual in Nigeria, where it is a rare surname, the United Kingdom, where it is a very rare surname, and South Africa. Not in comparison with a country's population, it most frequently occurs in Nigeria, the United Kingdom, and the United States. Also, Nwamadi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Nwamadi | South Africa, Canada, United States, United Kingdom, Nigeria |