Family name Mkoi (Mkoi 
) , all over the world, is a rare cognomen. The last name Mkoi is habitual in Tanzania, where it is a rare surname, and Malaysia, where it is a very rare surname. Very seldom, Mkoi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mkoi | Malaysia, France, Nigeria, Tanzania, Myanmar |