Cognomen Mapau (Mapau 
) , around the world, is a rare last name. The family name Mapau is characteristic of Indonesia, where it is a very rare surname, and the United States, where it is an extremely rare surname. Very seldom, Mapau is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mapau | South Africa, Indonesia, United States, India, Ecuador |