All around the world, ماسو (Masuo 
, Mase 
, Massu ) is a common epicene forename. The first name ماسو is characteristic of Lebanon, where it is a rare girly name, Jamaica, where it is a rare boy's name, and South Africa, where it is a rare epicene name. In absolute terms, it is the most numerous in India, Nigeria, and Pakistan. Likewise, ماسو is the last name as well as the forename.