Surname Basau (Basau 
, บาซอ 
) , across the world, is quite a rare last name. The family name Basau is habitual in Thailand, where it is a rare surname, Romania, and India, where it is a very rare surname. In absolute terms, the name is most common in India, Thailand, and Nigeria. Very seldom, Basau is the forename as well as the last name.