Cognomen Saau (ซาว 
, Saau 
) , around the globe, is a rare surname. The cognomen Saau is characteristic of Thailand, where it is a rare surname, Myanmar, where it is a very rare surname, and Nigeria, where it is an extremely rare surname. In absolute terms, it is commonest in Thailand, Myanmar, and India. Also, Saau is the forename as well as the last name.