Surname Maum-Bai (Maum-Bai 
) , throughout the world, is an extremely rare family name. Much more frequently, Maum-Bai is the forename as well as the last name. Parts of the name also exists independently as a last name Maum, and a last name Bai.
| VARIANT | COUNTRY |
|---|---|
| Maum-Bai | Philippines |