Surname Mamasu (Mamasu 
) , all over the world, is a very rare cognomen. The family name Mamasu is characteristic of South-eastern Asia, particularly Philippines, where it is a very rare surname, and Myanmar. Likewise, Mamasu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mamasu | Philippines, Myanmar, India, Japan, South Africa |