In all the world, Матау (Matau 
, Matthau 
, Матау 
) is quite a rare unisex forename. The given name Матау is characteristic of South Africa, where it is quite a rare principally female, but very seldom boy's name, India, where it is a rare unisex name, and Nigeria, where it is an extremely rare boy's name. Also, Матау is the last name as well as the forename.