Cognomen Mkusu (Mkusu 
) , in all the world, is a rare surname. The last name Mkusu is habitual in Sub-Saharan Africa, particularly Tanzania, where it is a rare surname, and Nigeria, where it is a very rare surname. Very seldom, Mkusu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mkusu | Nigeria, Tanzania |