Worldwide, มาซอ (Masau 
, มาซอ 
) is a rare predominantly male, but very seldom feminine forename. The first name มาซอ is habitual in Tanzania, where it is a rare boy's name, Nigeria, where it is a very rare boy's name, and India, where it is an extremely rare epicene name. More prevalently, มาซอ is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Masau | Fiji, Tanzania, Zimbabwe, Nigeria, Indonesia |
| มาซอ | Thailand |