Family name Mketu (Mketu 
) , all over the world, is a very rare cognomen. The family name Mketu is characteristic of Sub-Saharan Africa, particularly Tanzania, where it is a very rare surname, and South Africa, where it is an extremely rare surname. Much less frequently, Mketu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mketu | South Africa, Tanzania |