Globally, Thanasan (ธนสาร 
, Thanasan 
, ธนาสาร ) is quite a rare predominantly boy's, but very seldom female given name. The given name Thanasan is habitual in South-eastern Asia, particularly Thailand, where it is quite a rare predominantly boy's, but very seldom girly name. Very seldom, Thanasan is the last name as well as the forename.