Cognomen Mnyonyo (Mnyonyo 
) , around the globe, is a very rare surname. The surname Mnyonyo is characteristic of Sub-Saharan Africa, particularly Tanzania, where it is a rare surname, and South Africa, where it is a very rare surname. Very seldom, Mnyonyo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mnyonyo | Tanzania, South Africa |