Surname Demamu (Demamu 
) , in the entire world, is quite a rare family name. The surname Demamu is habitual in Ethiopia, where it is quite a rare surname, Canada, where it is an extremely rare surname, and the United States. More frequently, Demamu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Demamu | Canada, Ethiopia, United States |