Across the world, Tanasan (ธนสาร 
, Tanasan 
) is quite a rare principally masculine, but very infrequently feminine given name. The given name Tanasan is characteristic of Thailand, where it is quite a rare predominantly male, but scarcely female name, and India, where it is an extremely rare masculine name. Much less frequently, Tanasan is the last name as well as the forename.