Family name Nii-Kumi (Nii-Kumi 
) , in the world, is an extremely rare last name. Much more frequently, Nii-Kumi is the forename as well as the last name. Parts of the name also exists independently as a first name Nii, and a last name Kumi.
| VARIANT | COUNTRY |
|---|---|
| Nii-Kumi | United States |